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
Geometry revisited
Synopsis
This book offers a comprehensive exploration of modern geometry, building upon classical Euclidean concepts. It delves into advanced topics and theorems, providing a rigorous and insightful look at the subject. Readers will find a wealth of problems and exercises designed to deepen their understanding of geometric principles.