The Barbara O’Neill Self Heal by Design textbook focuses on the role of micro-organisms in promoting health and fitness. Written by author Barbara O’Neill, this 160-page trade paperback publication offers insights on cooking for optimal health and using micro-organisms to support overall well-being. With a publication year of 2023, this book is aimed at adult and further education levels, making it a valuable resource for those interested in exploring the connection between nutrition and healing through design.