Yusupov Book Question

Hey All,

I've seen that Yusupov has a large series of books under the Quality Chess Imprint and I was wondering how they differ from the earlier volume of his called "Chess Lessons."

Anyone familiar with the various books and willing to speak to the similarities and differences in material covered?

Thanks

I believe that the "Chess Lessons" was a collection of 10 training booklets, each covering a different subject.

The _____ up your chess series is a collection of lessons and exercises aimed at skills that chessplayers should grasp according to their level of chess knowledge.


I haven't red the Chess Lessons book, but I have a couple of Build Up you Chess books.