In the shadow of unimaginable loss, Sheryl Sandberg, Facebook’s COO, and Adam Grant, a Wharton professor, forge a path through grief with "Option B," a testament to the resilience of the human spirit. Sandberg's personal journey through the sudden death of her husband, Dave Goldberg, becomes a powerful narrative about the capacity to endure and grow from life's harshest trials. From the depths of "the void," a place of profound grief and isolation, Sandberg, with Grant's research-backed insights, explores not just her own recovery, but also the stories of many who have faced their own versions of Option B. This book is a beacon for anyone seeking to find strength in the face of adversity, offering actionable advice and the promise that joy, though different, can be found again. "Option B" transcends the story of Sandberg's loss, delving into how individuals across the spectrum of hardship—from illness and job loss to natural disasters and war—have discovered resilience within themselves and support from the world around them. It's a guide on how to build resilience muscles, support others in their time of need, foster resilient families and communities, and find meaningful growth after loss. By sharing not only her narrative but also those of others who have walked similar paths, Sandberg and Grant illuminate the ways in which our struggles can lead to a deeper appreciation for life and an unshakable determination to move forward, making the most of our own Option B.