Tartine Book No. 3 is another popular cookbook by Chad Robertson, the co-owner of Tartine Bakery. This book explores the world of whole grain baking, including sourdough breads made with ancient grains. It provides detailed instructions, recipes, and insights into the nutritional benefits of whole grains. With its focus on ancient grains and innovative baking techniques, this book is a great choice for those looking to explore the intersection of sourdough and whole foods.