Three books to start.
[1] Dr. Campbell (the scientist), along with his son, lay out the nature and extent of his research over the decades, laying out general principles of nutritional health, as well as the links between nutrition and cancer in The China Study (2005). His follow-up book Whole was published in 2013.
[2] Dr. Esselstyn (the doctor) demonstrates the effectiveness of the nutritional program in preventing and reversing (curing) heart disease. I'd start with The China Study.
[3] Michael Greger, M.D., sums it up in his 2015 book, "How Not To Die."