Illustration: ‘Where’s Wally" The Totally Essential Travel Collection’ by Martin Handford
Emma O’Donovan pieces together the best puzzle and activity books for inquisitive minds

            

Age 8-10: This Book Thinks You?re a Maths Genius by Dr Mike Goldsmith and Harriet Russell

Making maths fun in the most engaging way, this fill-in book will help children to think like a mathematician. £8.95, Thames and Hudson  

App: TotemUp by Minilab Studios

With over 200,000 combinations to explore, this cool puzzle block game is both mesmerising and entertaining. £1.49, App Store and Google Play
 

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