A practical book explaining dietary methods and body usage to boost immunity. The book has yellowed pages. As shown in the photos, the edges of the book are yellowed. There is no problem with reading it. - Title: Immune Revolution You Can Do Yourself - Author: Toru Abo - Content: A book explaining dietary methods and body usage to boost immunity. Delivery will be via anonymous Mercari delivery service. No pets. No smoking. Thank you for viewing.