Here are two recent reviews of this biography and reflections on Crumb's work.
• The Atlantic -- https://www.theatlantic.com/magazine/archive/2025/05/r-crumb-dan-nadel-cartoonists-life-review/682118/
• NY Times -- https://www.nytimes.com/2025/04/20/books/review/crumb-a-cartoonists-life-dan-nadel.html
Actually, they have quite a lot of additional links to further reviews/features about the book here: https://www.tcj.com/the-egg-a-symbol-of-life-this-weeks-link...