a constant companion' Bill Bailey

'Extraordinary and beautiful... the most exciting and ambitious work of non-fiction I have read in more than a decade' The Daily Telegraph

This extraordinarily wide-ranging study looks at the dilemmas of life today and shows how they need not have arisen.

A provocative work that explores the evolution of emotions and personal relationships through diverse cultures and time. "An intellectually dazzling view of our past and future."--Time magazine