--- a/image.rst	Sun May 11 23:18:42 2014 +0300
+++ b/image.rst	Mon May 19 08:24:05 2014 +0300
@@ -6,19 +6,22 @@
 ========
 .. contents::
 
+Viewers.
+========
+
 GraphicsMagick.
-===============
+---------------
 
 GraphicsMagick command-line utilities to create, edit, or convert images.
 
 ImageMagick.
-============
+------------
 
 ImageMagick - is a free software suite for the creation, modification and
 display of bitmap images.
 
 gthumb.
-=======
+-------
 
 gThumb is an advanced image viewer and browser. It has many useful features,
 such as filesystem browsing, slide show, image catalogs, web album creation,
@@ -30,3 +33,16 @@
 
   http://openclipart.org/
                 home page
+
+Join icons to sprite.
+=====================
+
+Make one liner::
+
+  $ convert *.png -append sprites.png  # vertically
+  $ convert *.png +append sprites.png  # horizontally
+
+Make box::
+
+  $ montage --geometry 16x16 *.png sprites.png
+