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I love this colouring book, it has a good selection of animals in the pages. I love how the pages only have a picture on one side, i use pencils but if you use pens it wouldn’t damage another picture if it was to come through. Also because each page is perforated you can take them out so you could even put them in a frame as a present for someone. I do recommend this book for anyone to use, i hope National Geographic make many more.