"Dictionary of Dostoevsky's Language" is performed as a lexicographic series, including several types of dictionaries (basic, frequency, toponyms, grammatical words, phraseologisms, etc.), which, according to the plan, should present the writer's idiolect with maximum completeness. The series opens with "The Lexical System of Idiolect," which consists of several issues and is based on a dictionary of the most important lexical units for the author, representing the world of a linguistic personality - the artist of the word, philosopher, publicist, Russian person of the second half of the 19th century.