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My son loves Geronimo Stilton. There is nothing wrong with the book itself. The issue is that he Kindle format for these books (we purchased a number of them thinking the formatting may have been specific to a couple of books) simply displays an image about 2 inches wide by 5 inches tall. The font is almost unreadable and cannot be increased. We've not found a way to get the image to display in a size that is comfortable for him to read.