"An extraordinarily well-written, well-researched, and carefully thought out piece of work. . . . The discussions of the paradoxes of relativity and of cosmology are the best discussions of these topics at an elementary level that I have ever seen."--Roger A. Freedman, University of California, Santa BarbaraSartori, Leo is the author of 'Understanding Relativity A Simplified Approach to Einstein's Theories', published 1996 under ISBN 9780520200296 and ISBN 0520200292.