Scientifically verified publication of all the completed compositions of this great Russian composer was implemented for the first time ever. Every volume is furnished with the detailed commentaries, bar-by-bar textual notes (in Russian and English) and the list of the sources and publications references (scientific editor - V.V.Rubtsova). This new publication permits to reconstruct the creative process of Skriabin's work, thus being of great importance for the performers and researchers of music.