Is this book for you?
The ONE Thing
Read it if…
- You end most days busy but can't name one thing that really moved forward.
- Your to-do list keeps growing and everything on it feels urgent.
- You multitask all day and still feel behind.
- You want one simple question to guide your priorities, not a complicated system.
- You have a big goal but no clear first step towards it.
Watch the summary
What the book is about
The ONE Thing argues that extraordinary results don’t come from doing more. They come from doing less, but choosing it well. Gary Keller, who built Keller Williams into one of the largest property firms in the world, says the people who get furthest are the ones who narrow their focus to the single task that matters most, then protect time for it.
The book is built around one question: what’s the one thing you can do such that, by doing it, everything else will be easier or unnecessary? It first clears away common beliefs about success that get in the way, then shows how to set goals from the big picture down to today, and finally how to make time for what matters every day.
What’s inside
The Focusing Question One question to ask about your life, your year and your next hour: what’s the one thing that would make everything else easier or unnecessary?
The domino effect Small, well-chosen actions knock over bigger ones. Line up the right first task and momentum builds on its own.
Six lies about success Keller takes apart six ideas that hold people back: that everything matters equally, that multitasking works, that you need a disciplined life, that willpower is always there, that life must be balanced and that big is bad.
Habits beat discipline You don’t need iron discipline forever. You need it just long enough for the right habit to form and take over.
Goal setting to the now Start with your someday goal, then work back through five years, one year, this month and this week, until you know what to do right now.
Time blocking Protect a block of time every day, ideally four hours, for your one thing, and treat it like an appointment you can’t move.
The four thieves The things that steal focus: not saying no, fear of chaos, poor health habits and surroundings that don’t support your goals.
Who wrote it
Gary Keller co-founded Keller Williams Realty in 1983 and is now executive chairman of the company and of kwx, the holding company behind all its businesses. His books have sold more than five million copies.
Jay Papasan is a former editor at HarperCollins in New York who has co-written Keller’s books since The Millionaire Real Estate Agent. After more than 25 years at Keller Williams, he stepped back from his day-to-day role there in 2026 to focus on writing, coaching and the Austin property business he runs with his wife, Wendy.
What readers are saying
What they love: Readers say the book turns a vague wish to “focus more” into something they can actually do. The Focusing Question is the part people mention most, often saying they now ask it at the start of every day. Many also credit time blocking with helping them finish work that had been stuck for months, and say the short chapters make it easy to pick up and reread.
What well-known names said: Former world number one tennis player Maria Sharapova said the book reminded her to wake up each morning focused on the one thing she wants to get done that day. Author and podcast host Brandon Turner called it “an easy to read but profound book”.
Quick facts
- Authors
- Gary Keller with Jay Papasan
- Publisher
- Bard Press (US), John Murray (UK paperback)
- Length
- 240 pages
- Published
- April 2013 (UK paperback April 2014)
- Formats
- Hardback, paperback, ebook and audiobook, narrated by Timothy Miller and Claire Hamilton
- Recognition
- Number one Wall Street Journal bestseller, nearly three million copies sold, 12 book awards
- Reading time
- Around 4 to 5 hours (audiobook 5 hours 24 minutes)
- Difficulty
- Easy. Short chapters and plain language.
Our verdict
If you're busy all day but rarely feel you've moved the needle, this is the book to get. Its Focusing Question gives you a simple test for every task, and the domino idea shows how one right action makes the next one easier. It makes one big point and keeps returning to it, so it suits readers who want clarity more than new theory. The UK paperback is light enough to finish in a weekend.
WillYouRead.com is independent and not affiliated with the author or publisher.
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