All of the resources for this book can be found at http://pragprog.com/book/kbogla, where you can find code samples and accompanying images and textures. If you have purchased the ebook, then you can also click on the hyperlink above each code extract to download that extract directly. You can also join in the discussions at the book’s website and help improve the book by submitting your feedback and errata.
Please feel free to also visit Learn OpenGL ES, an OpenGL ES tutorial blog that I maintain.
The following is a list of some great online resources maintained by the Khronos Group: