Book excerpt: Highlights continues the Write-On Wipe-Off series with two new books featuring favorite puzzles designed to be enjoyed over and over again. In Spot the Differences, kids hunt for differences between two illustrations, then draw in the differences to make the pictures match. Specially created companion activities include trace-and-write, imagine-and-draw, word searches, decorate the picture, and more. The reusable tray on the cover makes a convenient, permanent home for the marker.