“Anna Machin offers a lively guide to the many kinds of human love that exist, and the biology and psychology that explain why we love the way we do.”

– Frans de Waal, NEW YORK TIMES bestselling author of "Mama's Last Hug"

“This book opens the Pandora's Box on this most complex and puzzling aspect of what it is to be human.”

– Robin Dunbar, author of "Friends"

"Love sits at the center of human existence, according to this sharp survey from anthropologist Machin. Machin draws from plenty of studies of both the human and animal worlds, and her personal interjections are energizing: 'Human love is awe-inspiring. I believe it defines our humanity.' This provocative account is a fitting tribute to its subject."

– Publishers Weekly