The book will help a beginner who takes the first steps and does not even know how to hammer a nail, get used to it and eventually become a mature master. And even the first steps of a craftsman will help him in many ways (and in his personal life too): after all, a craftsman is already a person. And, it goes without saying, a craftsman is the first step towards the "title" of "owner in the house," whose hands always have a job.