That's because the title was editorialized. The original title "The Thinner Book: Atomic Habits by James Clear" is explicit on its nature: > The most importan

That's because the title was editorialized. The original title "The Thinner Book: Atomic Habits by James Clear" is explicit on its nature: > The most important ideas in your typical 300-page book can usually be distilled into several pages. These several pages are the thinner book.