马北

Ma Bei is an author of psychology books about whom limited public information is available. Four works are currently known under this name, focusing on applied psychology and psychological research. Representative titles include The Psychology of the Enneagram and several multi-volume collections of popular psychology, such as The Complete Collection of Psychology Bestsellers (5 volumes) and The Complete Collection of Classic Psychology Bestsellers (5 volumes). Judging from their titles and organization, Ma Bei's writing tends toward popular and practical psychology for general readers, often centering on personality types and psychological cognition and presenting psychological knowledge systematically in collection form. As no reliable records of birth and death dates, nationality, education, or specific experience have been found, this introduction makes no speculation and outlines the author's writing profile solely on the basis of the works listed in the database.