Nigel Barker's Beauty Equation is a self-help book that aims to help readers achieve a better and more beautiful version of themselves. Written by the former host of the reality TV show, America's Next Top Model, the book offers insights into beauty from a holistic perspective, including physical, mental, and spiritual aspects. It also features personal anecdotes and stories from Barker's life and career, as well as tips and advice for readers to implement in their own lives. The book is signed and autographed by Barker himself, making it a unique and personalized addition to any collection.