"Yusupov series of books (Build up your chess, Boost your chess, Chess Evolution) for players in 1000-2200 level approx. is good recommendation."
GM Ramesh, probably the best trainer in the world. Trainer of Praggnanandhaa, Aravind and many other promising young Indians "The Build Up Your Chess series won the 2009 Boleslavsky Medal from FIDE as the best instructional chess ... Read morebooks in which the instructional values were shown to be remarkable. Placing second and third in the voting were books from Garry Kasparov and Mark Dvoretsky. The Boost Your Chess series continues this successful format and deserves to win a spot on your bookshelf."
Michael McGuerty, ChessCafe "Artur Yusupov was a very strong Grandmaster in his prime. Back in 1989 he was ranked third in the world and narrowly missed defeating Anatoly Karpov when the latter was still near the peak of his legendary powers. These days Yusupov doesn't play so much preferring to spend his time teaching and writing. The latter may well be where the Russian-German GM makes his most lasting contribution… Each chapter starts with the introduction of a theme followed by progressively more difficult examples and finally exercises to solve with detailed solutions. Such an approach has been seen before but never done as well. One might ask why it is necessary to have such a high rated Grandmaster write a book for less-advanced players? The answer is that Yusupov offers the rare combination of tremendous chess knowledge and the ability and desire to share it. Boost Your Chess 1: The Fundamentals is not a random collection of positions tossed together but carefully chosen ones that methodically build the student's knowledge from exercise to exercise. Highly Recommended"
IM John Donaldson "Quality Chess has a reputation for beautiful and unique books such as San Luis 2005 and more recently Genius in the Background … But now they have a real workout book: Artur Yusupov's Boost Your Chess 1… an ideal self-study book for any aspiring club player."
Bab Wilders, Nederlands Dagblad Show Less