diff --git a/free-programming-books.md b/free-programming-books.md
index 5ee91554..bb60ace5 100644
--- a/free-programming-books.md
+++ b/free-programming-books.md
@@ -1494,6 +1494,7 @@ See also [TeX](#tex)
 * [Welcome to Problem Solving with Algorithms and Data Structures](http://interactivepython.org/runestone/static/pythonds/index.html) - Brad Miller and David Ranum
 * [Wikibooks: Python Programming](http://en.wikibooks.org/wiki/Python_Programming) (2.7)
 * [CodeCademy Python](http://www.codecademy.com/tracks/python)
+* [Pyhthon for Informatics](http://www.pythonlearn.com/book_007.pdf)
 
 
 #### Django
diff --git a/free-programming-interactive-tutorials-en.md b/free-programming-interactive-tutorials-en.md
index f4192ae8..e43d6250 100644
--- a/free-programming-interactive-tutorials-en.md
+++ b/free-programming-interactive-tutorials-en.md
@@ -34,6 +34,7 @@
 * [Try Git](http://try.github.io)
 
 
+
 ### Go
 * [Go Koans](https://github.com/cdarwin/go-koans)
 * [The Go Tutorial](http://golang.org/doc/go_tutorial.html)
@@ -99,6 +100,7 @@
 * [Python Koans](https://github.com/gregmalcolm/python_koans)
 
 
+
 ### R
 * [Try R](http://tryr.codeschool.com)