This book looks to be an interesting read- “American Wasteland” by Jonathan Bloom.
“American Wasteland examines how we waste nearly half of our food, chronicling waste from farm to fork. The book discusses why food waste matters and offers suggestions on what we can do better.
American Wasteland is a journey through our food chain that raises questions about how our approach to eating has changed so much and what it means. The book introduces myriad characters and tells the story of American food waste through their lives.
A word of warning: It’s a book that forces you to reconsider your approach to food. Because once you’re looking for food waste, it’s hard to miss.
His official site has tips about food gleaning, ideas from readers, and food recovery: Wasted Food