Because GIMP (GNU Image Manipulation Package) is free and open source software, one must look carefully at the books available about it. Many are outdated, covering earlier versions. GIMP 2.8 is the current version and the book even includes a disc with the software for multiple platforms (Linux, Windows, MacOS). The book itself looks like a college textbook because that's what it is. The author, Klaus Goelker, uses it to teach courses on GIMP. In the introduction, Goelker specifically states the book is a learning guide and not a quick reference book. It is designed to enable the reader to master the software by working through the tutorials contained within it. If you're looking for quick tips and tricks, this may not be the book for you. If detailed, guided tutorials with hands-on learning exercises fit well with your learning style, then you will find this book to be a valuable self-teaching tool.