diff --git a/README.md b/README.md
index 1c06301..a725396 100644
--- a/README.md
+++ b/README.md
@@ -67,12 +67,18 @@ For bugs you can use the
 
 main.sld is the real main which is copied to main.scm
 
-## Documentation WIP
-
-Note that this documentation is work in process and very incomplete, sorry about that.
+## Documentation
 
 On some implementations these are procedures, on some macros.
 
+The arguments are in form
+
+- NAME - TYPE
+
+The return value is in form
+
+- TYPE
+
 ### Types
 
 Types are given as symbols, for example 'int8 or 'pointer.
@@ -105,22 +111,23 @@ Types are given as symbols, for example 'int8 or 'pointer.
 
 Arguments:
 
-- headers (list (string) ...)
+- headers - (list string ...)
   - C headers of the library
   - For example (list "curl/curl.h")
-- object-name (symbol)
+- object-name - symbol
   - The name of the dynamic library file you want to load
   - Without the "lib" in front of it
   - Without the ".so" or ".dll" at the end
-- addition-versions (list (string)...)
+- addition-versions - (list string...)
   - For example (list ".0" ".1")
-- addition-paths (list (string)...)
+- addition-paths - (list string...)
   - Any additional paths you want to search for the library
   - For example (list "./mylibs")
 
 Returns:
 
-- (object) Shared object, the type depends on the implementation
+- object
+    - Shared object, the type depends on the implementation
 
 #### pffi-shared-object-load
 
@@ -129,14 +136,17 @@ Returns:
 
 Arguments:
 
-- headers (list (string) ...) Headers that need to be included
-- Example (list "curl/curl.h")
-- path (string) The full path to the shared object you want to load, including any "lib" infront and .so/.dll at the end
-- Example "libcurl.so"
+- headers - (list string ...)
+    - Headers that need to be included
+    - Example (list "curl/curl.h")
+- path - string
+    - The full path to the shared object you want to load, including any "lib" infront and .so/.dll at the end
+    - Example "libcurl.so"
 
 Returns:
 
-- (object) Shared object, the type depends on the implementation
+- object
+    - Shared object, the type depends on the implementation
 
 
 
@@ -146,9 +156,141 @@ Defines new foreign procedure.
 
 Arguments:
 
-- scheme-name () The name of the procedure used on scheme side
-- shared-object (object) The shared object
-  - Use pffi-shared-object-auto-load or pffi-shared-object-load to get this
-- c-name (symbol) The name of the C function
-- return-type (symbol) The return type of the C function
-- arguments-types (list (symbol) ...) The C function argument types
+- scheme-name
+    - The name of the procedure used on scheme side
+- shared-object - object
+    - The shared object
+    - Use pffi-shared-object-auto-load or pffi-shared-object-load to get this
+- c-name - symbol
+    - The name of the C function
+- return-type - symbol
+    - The return type of the C function
+- arguments-types - (list symbol ...)
+    - The C function argument types
+
+### pffi-size-of
+
+Get the size of type.
+
+Arguments:
+
+- type - symbol
+    - The type you want the size of
+
+Returns:
+
+- number
+    - The size of the given type
+
+
+### pffi-pointer-allocate
+
+Allocates a pointer of given size.
+
+Arguments:
+
+- size - number
+    - The size of the pointer you want to allocate
+
+Returns:
+
+- object
+    - A pointer of given size
+
+
+### pffi-pointer-null
+
+Create a null pointer.
+
+Returns:
+- object
+    - Null pointer
+
+### pffi-string->pointer
+
+Arguments:
+
+- string-content - string
+    - The string you want to transform into pointer
+
+Returns:
+
+- object
+    - Pointer of the given string
+
+
+### pffi-pointer->string
+
+Arguments:
+
+- pointer - object
+    - The pointer you want to transform to string
+
+Returns:
+
+- string
+    - String from the given pointer
+
+### pffi-pointer-free
+
+Arguments:
+
+- pointer - object
+    - The pointer you want to free
+
+### pffi-pointer?
+
+Arguments:
+
+- object - object
+    - The object you want to check wether it is a pointer or not
+
+Returns:
+
+- boolean
+    - Returns true if given object is pointer, otherwise false
+
+
+### pffi-pointer-set!
+
+Arguments:
+
+- pointer - object
+    - The pointer you want to modify
+- type - symbol
+    - The type of value that will be put into the pointer
+- offset -number
+    - The location of the value inside the pointer
+    - For example: (+ (pffi-size-of 'int) (pffi-size-of 'pointer)) or 0
+- value - object
+    - The value to be placed into the object
+
+### pffi-pointer-get
+
+Arguments:
+
+- pointer - object
+    - The pointer you want to get the value from
+- type - symbol
+    - The type of value you want to get
+    - For example: 'int
+- offset - number
+    - The location of the value inside the pointer
+    - For example: (+ (pffi-size-of 'int) (pffi-size-of 'pointer)) or 0
+
+Returns:
+
+- object
+    - The value in the poiner in the given offset as given type
+
+### pffi-pointer-deref
+
+Arguments:
+
+- pointer
+    - The pointer to dereference
+
+Returns:
+
+- object
+    - Whatever the pointer holds