【Content Introduction】 This book is a practical guide to improving mental health. The author proposes concrete methods for reducing stress and anxiety encountered in daily life. 【About the Author】 Emma Heckerberg is a mental health expert and the author of numerous books. Her approach is practical and based on scientific evidence. 【Reader Reviews】 This book has received high praise from many readers and is a must-read for those interested in mental well-being. - Title: Mental Operating Manual: Turning on the Happiness Switch - Publisher: Discover Twenty One - Author: Emma Heckerberg - Number of pages: 210 pages - Condition: Good Thank you for viewing.