From the time she was young, Suleika Jaouad has kept a journal. She’s used it to mark life's biggest occasions and to weather its most ferocious storms. Journaling has buoyed her through illness, heartbreak, and the deepest uncertainty. And she is not alone: for so many people, keeping a journal is an essential tool for navigating both the personal peaks and valleys and the collective challenges of modern life. More than ever, we need a space for puzzling through.