亨利有個秘密,卻不知道拿它怎麼辦才好,祖父建議,把秘密藏在帽子底下吧!沒想到當亨利戴上帽子,發現裡面也有祖父過去的秘密…全彩繪本,以充滿想像力的冒險旅程,描繪出祖孫間的溫暖羈絆。Henry's got a secret ... a big one!And he doesn't know what to do with it. Grandpa suggests he should keep it under his hat - and he's got just the hat for the job.But when Henry puts it on he discovers that Grandpa has some secrets of his own!A lyrical and heart-warming story celebrating the magical bond between a child and a grandparent, with full colour illustrations on every page.
Travelling from zero to infinity and back again via algebra, polygons, probability and averages, friendly (but silly) robots guide the reader through the weirdness of mathematics. With up to 300 fascinating facts and 150 riotous gags, this engaging and hilarious book teaches readers why maths is so much weirder than they first thought