Long-time readers will know that us BG ladies love a height chart, mix that up with an activity book and you know we’re going to be all over it! BIGGER (Cicada, RRP £9.95) is this year’s offering from Eleonora Marten. It’s a fab concertina-style book that serves as a height chart and a measuring tool. My two have been measuring everything – and i mean everything – and getting excited about what is and isn’t bigger and they have really loved marking out how far a flea can jump, and they’re running about outside to measure round a tree trunk, a blade of grass, and lots more. Yep, that’s right. They’re excited about maths! It can be hung on the wall once you have completed the activities – which also includes an exploration of weight and volume. The illustrations are bright and bold, the design is on point. There’s a lot to love.