What If? 10th Anniversary Edition by Randall Munroe answers absurd hypothetical questions with serious scientific explanations. This expanded edition includes new questions, answers, and illustrations, blending humor with in-depth scientific exploration. Munroe, known for his xkcd webcomic, covers topics from physics to biology and engineering, providing engaging and accessible content for science lovers and curious minds. The book combines quirky illustrations with thought-provoking answers, making it a fun, educational read for anyone interested in science and humor.