An entertaining, groundbreaking, and informative guide to relationship compatibility based on the 12 birth order types, from the bestselling author of The Art of Kissing . Studies show the most reliable scientific predictor of personality is birth order--your place among your siblings. The Birth Order Book of Love is the first guide to consider this factor when finding the perfect mate. Why do firstborns often find romance with lastborns? Who's the worst match for an only child? Cane examines the 12 personality/birth order types (older brother of brothers, younger sister of sisters, etc.), revealing why certain birth orders are more compatible and which ones can present communication challenges (and how to overcome them). Cane has analyzed the birth order of 6,000 celebrities, historical figures, and modern couples. Readers will learn what birth order says about them, which celebrity they'd be most compatible with, and who their best match is in real life.