If you are looking for musical "books" (sheet music collections and pedagogical works), Nikolai Petrovich Rakov is famous for his educational piano cycles and chamber music. His works are essential for music students in Russia and abroad. :
: Offers an extensive archive of his piano scores. nikolai rakov knigi skachat
: Another major retailer for his physical and electronic books. If you are looking for musical "books" (sheet
: A collection of selected children's piano pieces. "From Youthful Days" : A suite of 10 piano pieces. nikolai rakov knigi skachat
: The publisher's site lists his full bibliography with purchase links.