diff --git a/doc/apple2.sgml b/doc/apple2.sgml
index cf83dacc9..09052ade1 100644
--- a/doc/apple2.sgml
+++ b/doc/apple2.sgml
@@ -73,7 +73,7 @@ system takes care of actually moving the code into the Language Card.
 
 The amount of memory available in the Language Card for generated code depends
 on the <ref id="link-configs" name="linker configuration"> parameters. There are
-several usefull settings:
+several useful settings:
 
 <descrip>
 
diff --git a/doc/apple2enh.sgml b/doc/apple2enh.sgml
index 8b61df91c..a105cb47a 100644
--- a/doc/apple2enh.sgml
+++ b/doc/apple2enh.sgml
@@ -73,7 +73,7 @@ system takes care of actually moving the code into the Language Card.
 
 The amount of memory available in the Language Card for generated code depends
 on the <ref id="link-configs" name="linker configuration"> parameters. There are
-several usefull settings:
+several useful settings:
 
 <descrip>
 
diff --git a/doc/atari.sgml b/doc/atari.sgml
index 903895d17..85dcaaf5e 100644
--- a/doc/atari.sgml
+++ b/doc/atari.sgml
@@ -131,7 +131,7 @@ With the default load address of &dollar;2400 this gives a usable memory range o
 &lsqb;&dollar;2400-&dollar;CFFF&rsqb;.
 
 Please note that the first load chunk (which checks the system
-compatibilty and available memory) will always be loaded at
+compatibility and available memory) will always be loaded at
 &dollar;2E00, regardless of the specified start address. This address
 can only be changed by a custom linker config file.
 
@@ -305,7 +305,7 @@ The names are the usual ones you can find in system reference manuals. Example:
 ...
 </verb></tscreen>
 
-Please note that memory location 762/$2FA is called "<tt/char_/" while the orignal name "<tt/char/" conflicts with the C keyword.
+Please note that memory location 762/$2FA is called "<tt/char_/" while the original name "<tt/char/" conflicts with the C keyword.
 
 If you like to use the OS names and locations for the original Atari 800 operating system, please "<tt/#define OSA/" before including the
 <tt/atari.h/ header file.
@@ -401,7 +401,7 @@ OS.sdlst = &amp;DisplayList;
 ...
 </verb></tscreen>
 
-Please inspect the <tt/_antic.h/ header file to detemine the supported
+Please inspect the <tt/_antic.h/ header file to determine the supported
 instruction names. Modifiers on instructions can be nested without need
 for an order:
 
@@ -410,7 +410,7 @@ for an order:
 Please mind that ANTIC has memory alignment requirements for "player
 missile graphics"-data, font data, display lists and screen memory. Creation
 of a special linker configuration with appropriate aligned segments and
-switching to that segment in the c-code is usually neccessary. A more memory
+switching to that segment in the c-code is usually necessary. A more memory
 hungry solution consists in using the "<tt/posix_memalign()/" function in
 conjunction with copying your data to the allocated memory.
 
@@ -1141,8 +1141,8 @@ ld65: Error: Missing memory area assignment for segment 'MAINHDR'
 </verb></tscreen>
 
 The old "HEADER" memory description contained six bytes: &dollar;FFFF
-and the first and last memory addess of the program. For the "system
-check" load chunk this had to be split into two memory assigments. The
+and the first and last memory address of the program. For the "system
+check" load chunk this had to be split into two memory assignments The
 "HEADER" now only contains the &dollar;FFFF. The main program's first
 and last memory address were moved to a new segment, called "MAINHDR",
 which in the new linker config file goes into its own memory area (also
diff --git a/doc/atari5200.sgml b/doc/atari5200.sgml
index c7e5be73e..599ffe3c9 100644
--- a/doc/atari5200.sgml
+++ b/doc/atari5200.sgml
@@ -237,7 +237,7 @@ The runtime library provides a default game name which is "cc65
 compiled". To change that, one has to link a file which puts data into
 the "<tt/CARTNAME/" segment.
 
-For reference, here's the default version used by the cc65 libary:
+For reference, here's the default version used by the cc65 library:
 <tscreen><verb>
 .export         __CART_NAME__: absolute = 1
 .macpack        atari
diff --git a/doc/ca65.sgml b/doc/ca65.sgml
index 8ae8eabd9..0638ab08c 100644
--- a/doc/ca65.sgml
+++ b/doc/ca65.sgml
@@ -301,7 +301,7 @@ Here is a description of all the command line options:
   compiler, see there for a list.
 
   Depending on the target, the default CPU type is also set. This can be
-  overriden by using the <tt/<ref id="option--cpu" name="--cpu">/ option.
+  overridden by using the <tt/<ref id="option--cpu" name="--cpu">/ option.
 
 
   <label id="option-v">
diff --git a/doc/cc65.sgml b/doc/cc65.sgml
index 821e76586..b20e05cc6 100644
--- a/doc/cc65.sgml
+++ b/doc/cc65.sgml
@@ -395,7 +395,7 @@ Here is a description of all the command line options:
 
   This option is used to set the target system. The target system determines
   the character set that is used for strings and character constants and the
-  default CPU. The CPU setting can be overriden by use of the <tt/<ref
+  default CPU. The CPU setting can be overridden by use of the <tt/<ref
   id="option--cpu" name="--cpu">/ option.
 
   The following target systems are supported:
@@ -1250,7 +1250,7 @@ parameter with the <tt/#pragma/.
 
   This pragma is used to display informational messages at compile-time.
 
-  The message intented to be displayed must be a string literal.
+  The message intended to be displayed must be a string literal.
 
   Example:
   <tscreen><verb>
@@ -1369,7 +1369,7 @@ parameter with the <tt/#pragma/.
   Switch compiler warnings on or off. "name" is the name of a warning (see the
   <tt/<ref name="-W" id="option-W">/ compiler option for a list). The name is
   followed either by "pop", which restores the last pushed state, or by "on" or
-  "off", optionally preceeded by "push" to push the current state before
+  "off", optionally preceded by "push" to push the current state before
   changing it.
 
   Example:
diff --git a/doc/cl65.sgml b/doc/cl65.sgml
index f00856bda..24d2f5927 100644
--- a/doc/cl65.sgml
+++ b/doc/cl65.sgml
@@ -57,11 +57,11 @@ Short options:
   -O                            Optimize code
   -Oi                           Optimize code, inline more code
   -Or                           Optimize code, honour the register keyword
-  -Os                           Optimize code, inline standard funtions
+  -Os                           Optimize code, inline standard functions
   -S                            Compile but don't assemble and link
   -T                            Include source as comment
   -V                            Print the version number
-  -W name[,...]                 Supress compiler warnings
+  -W name[,...]                 Suppress compiler warnings
   -Wa options                   Pass options to the assembler
   -Wc options                   Pass options to the compiler
   -Wl options                   Pass options to the linker
diff --git a/doc/co65.sgml b/doc/co65.sgml
index 865aed2bb..0a50fb3a8 100644
--- a/doc/co65.sgml
+++ b/doc/co65.sgml
@@ -235,12 +235,12 @@ things to be different from runtime loading:
 
 <item>  Without changing the segment names, all segments take the default
         names used by the standard linker configurations. This means that the
-        driver code is no longer contingous in memory, instead the code
+        driver code is no longer contiguous in memory, instead the code
         segment is placed somewhere in between all other code segments, the
         data segment is placed with all other data segments and so on. If the
         driver doesn't do strange things this shouldn't be a problem.
 
-<item>  With statically linked code, data and bss segments will get intialized
+<item>  With statically linked code, data and bss segments will get initialized
         once (when the application is loaded), while a loadable driver will
         get its initialization each time the driver is loaded into memory
         (which may be more than once in the lifetime of a program). It depends
diff --git a/doc/coding.sgml b/doc/coding.sgml
index 57961209f..3b1066dcd 100644
--- a/doc/coding.sgml
+++ b/doc/coding.sgml
@@ -59,7 +59,7 @@ slower than the same code for unsigned types.
 
 <sect>Use chars instead of ints if possible<p>
 
-While in arithmetic operations, chars are immidiately promoted to ints, they
+While in arithmetic operations, chars are immediately promoted to ints, they
 are passed as chars in parameter lists and are accessed as chars in variables.
 The code generated is usually not much smaller, but it is faster, since
 accessing chars is faster. For several operations, the generated code may be
diff --git a/doc/da65.sgml b/doc/da65.sgml
index b46ee9dd3..1702694a0 100644
--- a/doc/da65.sgml
+++ b/doc/da65.sgml
@@ -156,7 +156,7 @@ Here is a description of all the command line options:
   <tag><tt>-i name, --info name</tt></tag>
 
   Specify an info file. The info file contains global options that may
-  override or replace command line options plus informations about the code
+  override or replace command line options plus information about the code
   that has to be disassembled. See the separate section <ref id="infofile"
   name="Info File Format">.
 
diff --git a/doc/debugging.sgml b/doc/debugging.sgml
index 8b09db384..a270d12c7 100644
--- a/doc/debugging.sgml
+++ b/doc/debugging.sgml
@@ -39,7 +39,7 @@ transfer the program to the real machine until it is done.
 
 <item>An emulator allows many things that are almost impossible one of the
 original machines. You may set watchpoints (detect read or write access to
-arbitary addresses), debug interrupt handlers and even debug routines that run
+arbitrary addresses), debug interrupt handlers and even debug routines that run
 inside the 1541 floppy.
 
 <item>You may use the label file generated by the linker to make much more use
@@ -117,7 +117,7 @@ these warnings and errors as long as they reference any problems VICE thinks
 it has with the labels.
 
 After loading the labels, they are used by VICE in the disassembler listing,
-and you may use them whereever you need to specify an address. Try
+and you may use them wherever you need to specify an address. Try
 
 <tscreen><verb>
         d ._main
@@ -138,7 +138,7 @@ load your label file like this:
 </verb></tscreen>
 
 After loading the labels, they are used by Oricutron in the disassembler listing,
-and you may use them whereever you need to specify an address. Try
+and you may use them wherever you need to specify an address. Try
 
 <tscreen><verb>
         d ._main
diff --git a/doc/geos.sgml b/doc/geos.sgml
index f7943f8cd..c3601e741 100644
--- a/doc/geos.sgml
+++ b/doc/geos.sgml
@@ -207,7 +207,7 @@ see them together in the filling box in GeoPaint.
 <p>
 <tt/void GraphicsString (const void *myGString)/
 <p>
-One of the more powerfull routines of GEOS. This function calls other graphic functions depending
+One of the more powerful routines of GEOS. This function calls other graphic functions depending
 on the given command string. See the structures chapter for a more detailed description.
 
 <sect2>Rectangle functions
@@ -652,7 +652,7 @@ For some purposes you might consider using the <tt/dio.h/ interface to disk acce
 <p>
 All GEOS disk functions return an error code in the X register. In some cases this is returned by the
 GEOSLib function (if its type is <tt/char/), but in all cases the last error is saved in the <tt/__oserror/
-location. If it is nonzero - an error occured. See <tt/gdisk.h/ for the list of possible errorcodes.
+location. If it is nonzero - an error occurred. See <tt/gdisk.h/ for the list of possible errorcodes.
 You need to include <tt/errno.h/ to get <tt/__oserror/, together with the standard <tt/errno/. The
 latter gives less verbose, but still usable information and can be used with <tt/strerror/.
 Probably you will get more information using <tt/_stroserror/ in a similar way.
diff --git a/doc/grc65.sgml b/doc/grc65.sgml
index aec112f6b..c03815ade 100644
--- a/doc/grc65.sgml
+++ b/doc/grc65.sgml
@@ -7,7 +7,7 @@
 <url url="mailto:greg.king5@verizon.net" name="Greg King">
 
 <abstract>
-This document describes a compiler that can create GEOS headers and menues for
+This document describes a compiler that can create GEOS headers and menus for
 cc65-compiled programs.
 </abstract>
 
@@ -24,7 +24,7 @@ Optional resources might be menu definitions, other headers (e.g., for data
 files of an app.), dialog definitions, etc.  Without an application's header,
 GEOS is unable to load and start it.
 
-Currently, <bf/grc65/ supports only menues and the required header definition,
+Currently, <bf/grc65/ supports only menus and the required header definition,
 along with support for building applications with VLIR-structured overlays.
 
 <bf/grc65/ generates output in two formats: C header and <bf/ca65/ source (.s).
@@ -345,7 +345,7 @@ for addresses.
 <!-- <appendix> -->
 <sect>Appendix A -- example.grc<label id="example-grc">
 <p><tscreen><verb>
-; Note that MENU can define both menues and submenues.
+; Note that MENU can define both menus and submenus.
 ; If you want to use any C operators (such as "|", "&", etc.), do it WITHOUT
 ; any spaces between the arguments (the parser is simple and weak).
 
diff --git a/doc/intro.sgml b/doc/intro.sgml
index 0617b0ab3..5d1889d76 100644
--- a/doc/intro.sgml
+++ b/doc/intro.sgml
@@ -555,7 +555,7 @@ feature on.
 </quote>
 
 <quote>
-In VICE, got to <bf/Settings/ -> <bf/Settings/, then <bf/Peripherial devices/ ->
+In VICE, got to <bf/Settings/ -> <bf/Settings/, then <bf/Peripheral devices/ ->
 <bf/Drive/. Then, you must enable the <bf/True drive emulation/ checkbox.
 </quote>
 
diff --git a/doc/ld65.sgml b/doc/ld65.sgml
index 56d77ca63..87c2cae51 100644
--- a/doc/ld65.sgml
+++ b/doc/ld65.sgml
@@ -886,7 +886,7 @@ also for a segment. The value must be an integer between 0 and 255. It is used
 as the fill value for space reserved by the assembler's <tt/.ALIGN/ and <tt/.RES/
 commands. It is also used as the fill value for space between sections (part of a
 segment that comes from one object file) caused by alignment, but not for
-space that preceeds the first section.
+space that precedes the first section.
 
 To suppress the warning, the linker issues if it encounters a segment that is
 not found in any of the input files, use "<tt/optional=yes/" as an additional
diff --git a/doc/smc.sgml b/doc/smc.sgml
index e277c5008..88cd6dc14 100644
--- a/doc/smc.sgml
+++ b/doc/smc.sgml
@@ -85,7 +85,7 @@ Please note:
 <item>  The macro '<tt>SMC_StoreValue</tt>' takes care, that the store
         operation will occur on the value-position of a SMC-instruction. As
         you will see, other macros influence other instruction part positions.
-        There is no consistency check, if the targeted SMC instruction acually
+        There is no consistency check, if the targeted SMC instruction actually
         contains a value. Storing a 'value' on an immplied SMC instruction
         would corrupt the following memory cell!
 </enum>
@@ -582,7 +582,7 @@ into a single instruction line. These can be changed of course too.
 Line 10,11: These lines construct a branch operation for line 8: The
 X-register will be used to change it from 'inc StoreAccuFirstSection+2'
 (high-byte operation) to 'beq restoreCode'. Please note: To calculate the
-relaive branch offset, we introduced a second label
+relative branch offset, we introduced a second label
 ('RestoreCodeBranchBaseAdr') for to calculate it. Some could also use the
 internal name of the SMC label, but you should abstain to do so - it may be
 changed in the future...