If there were children in my life in the 3rd-8th grade range, you can bet that this would be at the top of my list of stocking stuffers!
There are a wide range of activities included from drawing prompts to Mad Lib type fill-in-the-blanks. Word scrambles, mazes, and quizzes about the books give opportunities for lots of skills to be used.
When I was very young, my brother and I always got an activity book for Christmas. I hadn't thought about that in years, but flipping through Big Nate: Doodlepalooza really took me back. I was the sort of child who felt compelled to fill in the book in order without skipping any pages, and I remember feeling thrilled when a particularly intriguing puzzle came up. I would have very much enjoyed this, although I probably would have had to fight off my brother's attempts to trade with me!