"if you come to this book and you doing the proposed methods you probably are now several levels above the rest in every issue you'll love and choose to engage in".

It is very unlikely that this would be in a book as the statement is not grammatically correct. Maybe if you "correct" the sentence? Is it supposed to say "if you follow the proposed methods of this book..." etc.? Did you translate that excerpt by any way, in that case, what was the original sentence? Would be easier to find by Googling that way, I suppose.