This book teaches the beginning guitar student various patterns to get them started playing the instrument. The patterns provided can be adjusted for difficulty, if the student has ability to apply more material than presented. Instructions will be provided for each exercise, as well as a breakdown of various rhythms.
As a beginner, remember that patience is your best friend. It takes time, and consistency to gain the skills. Set time aside in your daily life to tackle some the exercises. Eventually, you will be able to master the entire book!
The materials presented may not be new material for some students, and much of it may be rhythms you already understand and use, as rock players specifically use a plethora of materials pulled from many sources.