Our 3 year old loves this ABC sticker book. It is something we work on together while his younger brother is taking a morning nap, giving us some quality (and yet, quiet) time together. Our son recognizes upper and lower case letters, and this book is giving us the opportunity to talk about letter sounds. He enjoys the challenge of finding the corresponding stickers for each letter. It works great for us, as our son is NOT interested in pencil and paper activities. He may not enjoy colouring, but pull out the paint or glue and scissors, and he is ready to go. It is nice to find a learning activity book that is not focusing on having the children trace letters with a pencil.