The Number
Former Esquire editor Lee Eisenberg reframes retirement planning around a single compelling question: what's your Number — not just the dollar figure, but the life you're actually trying to fund? He organizes readers into four archetypes (Procrastinators, Pluckers, Plotters, Probers) based on how they relate to money and the future, and uses that framework to push toward a more honest self-reckoning about identity, purpose, and what the good life in retirement actually looks like. It hit the New York Times bestseller list for good reason — the framing is fresh and the prose is approachable. The honest caveat: critics have noted it runs long for what it delivers, leaning heavily on anecdote and philosophical reflection while offering relatively little in the way of concrete financial guidance. Readers who want spreadsheets and savings targets will be frustrated. But for baby boomers asking the bigger life questions, it's a worthy conversation starter.