The description of this book is all true. There is even much general material that would apply to playing back-up using any instrument in any genre. Since it is about playing back-up, there are no lyrics. What it doesn't mention is that the entire book is for G tuning. All the chord symbols and transcriptions assume G tuning. These details might not be important to you, but if, like you have small hands, or just prefer C tuning, or some other, just be aware.