From Muppet Wiki

This Muppet Show activity book, full of games, jokes, crafts, comics and riddles, was exclusively available in The Netherlands.

It contains translated material from the British Muppet Show Annuals, as well as two "sticker pages." The collectible stickers were included as promotional material with laundry detergents; on each sticker, one of the main characters is depicted, including secondary Muppets like Mahna Mahna, Thog, and The Reporter (The Newsman). Books with all the stickers in their places, as well as books that don't contain any of the stickers, are quite rare.