Andrew Birdz is a writer who explores the practices that change everyday life. Gratitude Rails grew out of a simple observation: millions of people keep gratitude journals, and almost nothing changes for any of them. Andrew went back to the research — from Emmons’s classic experiments to the neuroscience of habit — and found out why: it isn’t the writing that works. It’s the state. This book is about that state — and the ninety days it takes to make it yours.