Psoriasis has been my first and last thought every day for 7,665 days, and it has become as fascinating to me as it is frustrating. In 1997, at the age of 16, I was diagnosed with psoriasis, I was told that it was genetic, autoimmune and incurable. This book reviews what we know about psoriasis and what we don't. Exploring the rapidly developing area of human microbiome research to provide evidence-based, scientific guidance on diet and lifestyle intervention to supports gut bacteria and clear psoriasis.