Essential, fun wipe-clean activity books to keep children busy and master key early learning skills Space Trip is packed with brilliant activities and puzzles that are simply out of this world! Children will love getting to grips with pen control and mark-making as they try all of the cosmic challenges over and over again using the wipe-clean pen. The consultant-approved activities are fun to do and are combined with brilliant, engaging art that children will love. Also available: Let's Count!, Super Squiggles