Good Russian stuff,
I have them all they are excellent reference books especially the one on Rook Endings that he co-wrote with Nikolai Kopayev I consider it the most valuable book on the subject along with Jozsef Pinter's book 1000 Rook Endings and the one by Victor Kortchnoi Practical Rook Endings.
The entire series is high quality it can't recommend it enough if you want books that will last years and provide years of study.
Has anybody read these books (there are 5) and would you recommend them?