Computer Science Concepts books are available for Java and for C++. Each book assumes a basic knowledge of programming language, and the book explores some of the the powerful features of the language with emphasis on the most critical skills. Such topics as iteration, arrays, objects and classes, string manipulation, pointers, binary trees, linked lists, and many other features are defined in a tutorial format to allow progression at a student's own pace. Answers are provided along the way to keep students on the right track. A disk with programming activities is included that ensures a student's comprehension of many of the features presented, and this is accompanied by answer keys and judging criteria.