I just bought this word-matching puzzle for Rayyan from Toys R Us. Decided to test him on the spot. Out of the 26 puzzles (A-Z), he wasn't sure about 2 or 3 but he knows the rest! In fact, he was very fast, no hesitation at all! His word bank has definitely increased and he recognises so many words now. Goooooo Rayyan!!! Now, if only he will verbalise them....