Some sounds are made by putting two letters together. Mortimer the Teddy Bear hides behind a party mask. He tells us it "ends with the letters sk." Then kids get to guess which object on the next page ends with sk, too. Pan? Wisk? Spoon? On every page there are letter combinations and bright glossy photos of matching objects. Mortimer teaches using items that are familiar to children. There are photos of toast, silk, stamps and more. The Mortimer books always include a glossary/ index and a list of helpful videos.