diff -r 2add6c86f38e Doc/library/concurrency.rst
--- a/Doc/library/concurrency.rst	Wed Apr 17 04:36:45 2013 +0300
+++ b/Doc/library/concurrency.rst	Tue Apr 16 21:13:48 2013 -0700
@@ -8,7 +8,7 @@
 execution of code. The appropriate choice of tool will depend on the
 task to be executed (CPU bound vs IO bound) and preferred style of
 development (event driven cooperative multitasking vs preemptive
-multitasking) Here's an overview:
+multitasking). Here's an overview:
 
 
 .. toctree::