My free reading book

I am reading an encyclopedia of body building by Arnold Schwarzenegger. This book has opened a new part of my brain and how any human bodies mussels work. This book is very challenging to learn the materials in it because it has words that i have never seen before. This book matters to me because i am starting to get into body building and weight lifting. This is a part of many athletes lifestyle now a days, with out this we would not have as good of an understanding of the human body and how it works.