The monograph of the famous Russian psychiatrist Viktor Khrisanfovich Kandinsky “On Pseudohallucinations” has not been republished since 1952 and is now a bibliographic rarity in the full sense. In his monograph, V.Kh. Kandinsky goes far beyond the description of pseudohallucinations as a clinical phenomenon. They characterize almost all psychopathological manifestations accompanying pseudohallucinations. The author conducts a brilliant differential diagnostic analysis of pseudohallucinations and true hallucinations, as well as other conditions, including hypnogagic, confabulatory, pathological fantasizing, memory deceptions, and dream-hallucinatory states. The monograph is written in lively language and contains vivid clinical descriptions that could decorate any modern publication. The book is intended for psychiatrists, psychotherapists, psychologists, and medical students.