The following review is based on the epub edition of the English version of Monkey Stuff from a librarything.com giveaway.
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Monkey Stuff is without a doubt one of the most charming little picture books I have ever read. Not only is it educational (it teaches the numbers 1-10), but the rhymes are catchy and clever, the pictures are cute and colorful, the story is delightfully mischievous, and the humorous little twist at the end is simply adorable.
My only two qualms about the book were the size of the pictures in the ebook format, which may be difficult for children to read (My sister and I were able to read it fine, but I don't have any children on hand, so I can't test it out on them), and the uncommon sentence structure used to make the sentences rhyme, which might be difficult for very young children to understand.
Overall, Monkey Stuff is a delightful read, and I would definitely recommend it to anyone who enjoys picture books, especially mothers and teachers with young children/students.
On a related note, kudos to the author for making a Spanish and English version!