Telling the time only sticks with practice, and practice is exactly what an ordinary workbook cannot give you: one go and the page is used up. This book wipes clean. A child draws the hands on Spud the monster's clock, checks it, wipes it away with a cloth and does it again tomorrow, and knowing that a mistake costs nothing is what gives a three year old the nerve to keep trying until the hours are learned.

Jessica Greenwell builds it up gently: something o'clock first, then half past with two hungry monsters raiding the fridge at thirty minutes past every hour, then quarter after and quarter to as Postmonster Spike cycles his letters round a village of monster houses. Kimberley Scott's clocks are big and clear and held up by a cast of cheerful monsters, so every page feels like a game and never like a test.

The publisher shows it with a wipe-clean pen clipped to the cover, so it is ready the moment it comes off the shelf. Other wipe-clean books here: Wipe-Clean Alphabet, Wipe-Clean Travel Activities and Wipe-Clean Airport Activities.