The coronavirus pandemic has increased our existing mental health crisis to new heights. This book is an excellent introduction to classic HeartMath foundations. For decades, the Institute of HeartMath has produced rock-solid programs and science-backed evidence defining the intelligence of the heart. The Heartmath Solution masterfully outlines the connection between the heart and emotional health, including stress, anger, and anxiety.
Link: Coping with Anxiety: 6 Tried and True Books