“There is nothing more radical or powerful than understanding how your body works. The Cycle Book is a highly informative and in-depth guide to deciphering your cycle all the way through perimenopause. Of course, tracking your cycle is not new, but if you’ve felt intimidated by what it is, what it means or how to do it, this is the book for you!” -Aminatou Sow, co-author of NYT bestseller Big Friendship: How We Keep Each Other Close 

“Understanding my cycle has always been a lonely struggle. Doctors. Friends. Family. Random people on Reddit. Nobody ever seemed to be able to grasp what wasn’t right with me. The Cycle Book is an overdue miracle. Now, I don't just feel less alone—I finally have the tools to help me make sense of it all.” -Mackenzie Thomas, artist, and writer of I WILL DO WHATEVER I WANT

“This book offers a much-needed systems-thinking approach to menstruation, bridging the gap between oversimplified explanations and detached, esoteric concepts. It provides a framework to reimagine your relationship with your cycle, helping you decompartmentalize how you think about your period and yourself. It's an essential read.” -Erica Chidi, Educator, Doula, and Author of Nurture

“In a time when knowing the terrain of and owning our body sovereignty is more important than ever, this book gives you a key to unlocking and understanding the beautiful mystery of your cycles, a sixth vital sign of our essential health.” -Aviva Romm, MD, Midwife, and Author of the NYT Bestseller Hormone Intelligence 

"I loved this book. It provides so much practical wisdom about cycle-tracking and systematically removes the hurdles that can make it feel overwhelming. In addition to giving you all the tools you need to monitor your mental and physical health across the cycle, they give you a language to describe things going on in your body that you might be at a loss for otherwise." -Sarah Hill, PhD, author of This is Your Brain on Birth Control