An impassioned—and data-driven—case for a four-day workweek. The five-day workweek is a pillar of modern life, but it isn't backed by science, ancient wisdom, or divine decree. It's simply a relic of the industrial age—and it's time for an upgrade. What if we could be more productive while working fewer days? Just a few years ago, a shortened workweek seemed like a radical idea. Today, it's a serious strategy being embraced by forward-thinking business leaders, progressive politicians, and a new generation of workers demanding more-meaningful productivity. In Do More in Four, Joe O'Connor—a pioneer in designing and leading four-day-workweek pilots around the globe—and journalist Jared Lindzon, whose work has appeared in the New York Times, Rolling Stone, and TIME magazine, present a groundbreaking, data-driven exploration of why a four-day workweek isn't merely possible—it’s necessary in the modern business context. Drawing on extensive research and compelling case studies, O'Connor and Lindzon take readers inside the organizations that have transformed their work models, improving employee retention, boosting engagement, and driving revenue growth. Do More in Four is a blueprint for a smarter, more humane approach to work.