The Bogleheads' Guide to Investing, written by Taylor Larimore, Mel Lindauer, and Michael LeBoeuf, is a comprehensive guide to investing based on the principles of John C. Bogle, the founder of Vanguard Group. The book covers various investment topics, including asset allocation, diversification, and retirement planning. It provides practical advice on how to build a low-cost portfolio using index funds and ETFs. The Bogleheads' Guide to Investing also addresses common investment mistakes and offers strategies to avoid them. With its straightforward approach and emphasis on long-term investing, this book is a valuable resource for both novice and experienced investors.