diff --git a/doc/api.org b/doc/api.org
index bfabd40..e5da347 100644
--- a/doc/api.org
+++ b/doc/api.org
@@ -4,25 +4,24 @@
 #+LATEX_HEADER: \usepackage{fullpage}
 
 * General Description
-  - All transmissions will be based on TCP because:
-    - Packet length are not fixed
-    - Packet ordering is important
-  - All TCP stream from *client to server* will:
-    - Contain plain json data
-    - Be terminated by a "#EOF" line (in order for the server to detect the end of the request
-  - All TCP stream from *server to client* will contains plai json data (connection will be closed by the server
-    so there is no need of "#EOF".
+  - All transmissions will be based on TCP since:
+    - Packet length are not fixed (large variance depending on the snake size and food)
+    - Packet ordering is important (inverted request can compromise gameplay)
+  - All TCP streams from *client to server* will:
+    - Contain _plain json data_
+    - Be terminated by an "#EOF" line (in order for the server to detect the end of the client request)
+  - All TCP stream from *server to client* will contains _plain json data_ (connection will be closed by the server
+    so, there is no need of "#EOF").
 * Communications 
 ** Initialisation
-   1. Server wait for a client
-   2. Client can send:
+   1. Client sent:
       #+BEGIN_SRC json
         {
             "type": "new-game"
         }
         #EOF
       #+END_SRC
-   3. Server can reply:
+   2. Server can reply:
       #+BEGIN_SRC json
         {
             "type": "state",
@@ -34,7 +33,7 @@
       #+END_SRC
 ** Gameplay
 *** Change Direction
-    1. When client is playing a game it can ask to the server to change snake direction:
+    1. When client is playing a game, it can ask the server to change snake direction:
        #+BEGIN_SRC json
          {
              "type": "update",
@@ -43,7 +42,7 @@
          }
          #EOF
        #+END_SRC
-    2. Server can reply
+    2. Then, server can reply:
        #+BEGIN_SRC json
          {
              "type": "state",
@@ -54,7 +53,7 @@
          }  
        #+END_SRC
 *** Refresh Screen
-    1. When no key are press (the snake is simply going straigth forward). So, client can send:
+    1. When no key are pressed (the snake is simply going forward). So, client can send:
        #+BEGIN_SRC json
          {
              "type": "update",
@@ -74,7 +73,7 @@
          }  
        #+END_SRC
 *** End Game
-    - When game is over server will send the following state message (switch game-over to true):
+    - When game is over, server will send the following state message (switch "game-over" to true):
        #+BEGIN_SRC json
          {
              "type": "state",
diff --git a/doc/api.pdf b/doc/api.pdf
index 902dc6b..34d125b 100644
Binary files a/doc/api.pdf and b/doc/api.pdf differ