Love by Numbers

Luisa Dillner pulls from peer-reviewed psychology and sociology to answer real questions about attraction, dating, infidelity, and long-term partnership in a column format that is genuinely witty and easy to dip into. The evidence base is solid for a 2009 publication, though behavioral science has moved on in the years since. More explanatory than prescriptive, so readers looking for action steps may want to supplement — but as a readable survey of what the research actually says about love, it holds its own.