Starting at total beginner stage, the book takes you on a musical journey.
You'll be guided on a route where you'll learn the notes on the guitar very gradually; progressing string by string. This way your musical journey should never be daunting and you should never lose your way.
By the end of the journey you'll be able to read the notes on the first few frets of all six strings, and you'll be familiar with most common musical rhythms and note timings. In other words, you'll be well on the road to becoming a fluent sight reader on guitar.