H
H. S. M. Coxeter
Harold Scott MacDonald "Donald" Coxeter, CC, FRS, FRSC was a British and later also Canadian geometer. He is regarded as one of the greatest geometers of the 20th century. --Wikipedia
Regular complex polytopes
This book delves into the intricate world of regular complex polytopes, a specialized area within geometry. It offers a comprehensive and rigorous treatment of these mathematical structures, exploring their properties, classifications, and relationships. Readers will find a detailed examination of the theoretical foundations and advanced concepts in this field.