*[PNG: The Definitive Guide](http://www.libpng.org/pub/png/book/)
*[Pointers And Memory](http://cslibrary.stanford.edu/102/PointersAndMemory.pdf)(PDF)
*[Principles of Computer System Design ](http://ocw.mit.edu/resources/res-6-004-principles-of-computer-system-design-an-introduction-spring-2009/online-textbook/part_ii_open_5_0.pdf)(PDF)
*[Programmer's Motivation for Beginners](http://programmersmotivation.com)
*[Programming with Unicode](http://unicodebook.readthedocs.org)