diff --git a/HACKING b/HACKING
index 5e07d91..84f67cf 100644
--- a/HACKING
+++ b/HACKING
@@ -141,7 +141,7 @@ backtraces, compiler errors, etc.
 
   # git config format.subjectprefix "PATCH BlueZ"
 
-7) Add a cover letter when introducing a new feature explaning what problem
+7) Add a cover letter when introducing a new feature explaining what problem
 you're trying to solve:
 
   # git format-patch --cover-letter -M origin/master -o outgoing/
diff --git a/README b/README
index 6c07770..c68f12d 100644
--- a/README
+++ b/README
@@ -242,7 +242,7 @@ For a working system, certain configuration options need to be enabled:
 
 		Enable deprecated tools
 
-		By defauld all tools that are no longer maintained are
+		By default all tools that are no longer maintained are
 		disabled. This option can be used to enable them.
 
 		It is not recommended to enable this option for production
diff --git a/TODO b/TODO
index c9b3064..f816e81 100644
--- a/TODO
+++ b/TODO
@@ -107,7 +107,7 @@ ATT/GATT (new shared stack)
 
 - Add complete GATT test coverage in unit/test-gatt following the GATT test
   spec. This could use shared/gatt-client and shared/gatt-server at the same
-  time to test both against eachother. We should definitely have tests for
+  time to test both against each other. We should definitely have tests for
   gatt-server and gatt-client simultaneously on one side of the connection.
 
   Priority: High
@@ -212,7 +212,7 @@ Mesh
   Complexity: C4
 
 - Merge common functionality from tools/mesh. Ideally, source code from the
-  tools/mesh directory should completely dissapear.
+  tools/mesh directory should completely disappear.
 
   Priority: Low
   Complexity: C2