Maru originally gained fame through the YouTube videos posted by his owner. "Intensive Training" is the #1 video of the group.
Now, in this book, Maru's owner tells about his life and playtime, in both English and Japanese. Maru is an enchanting cat. However, this book is difficult to review because it's the photos that capture the cat's personality. The author tells how the videos came about due to Maru's playfulness.
Honestly? The book is cute, but the videos are even better. I'd recommend watching the videos before deciding if you must have more information about Maru. The book is actually only for diehard Maru fans.
I Am Maru by Mugumogu. HarperCollins. 2011. ISBN 9780062088413 (hardcover), 96p.
FTC Full Disclosure - A friend loaned me a copy of the book.
And, to give equal time to the cats that belong to John & Talia Sherer, here's Shmackies, one of my current roommates in Chapel Hill, North Carolina.