The publication includes a significant part of the creative heritage of the poet Igor Severyanin (1887-1941). The works included in the publication reveal the creative evolution of Severyanin. All texts are given in the first editions. The section "Additions" includes collections of works 1904-1912 and the poetic work "Theory of Versification" (1933), reflecting the poet's views on the renewal of the poetic form. Rare editions from the Russo-Japanese War are reproduced by facsimile. Appendices contain text justification and notes. The book, published in the authoritative series "Literary Monuments," is essentially the first scientific edition of the works of Igor Severyanin.