Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Descent Intro to OpenGL but horrible & difficult excercise

This book is descent if used with the Official OpenGL Programming Guide. Alone, it is confusing, framented, and leaves the reader constantly asking "How did you do that, please explain!" The excercises are very difficult if you are not already an expert on Computer Graphics. It assumes you know complicated Computer Graphic techniques (although stated otherwised in the prefix) and askes you to implement them in OpenGL without hardly explaining how the technique works? I have to use this for a Computer Graphics course which is suppose to be for Senior Computer Science majors. Most of the exercises are completely beyond what the book has presented!