We buy tens of millions of packets every single day. But how did the humble potato snack become a national dish? Crunch is a love letter to crisps. It traces their evolution from the simplicity of salt sachets in the early 20th century, to 80s childhood favourites such as Hula Hoops, to the popularity of 'hand-cooked' gourmet flavours today.

Featuring crisp collectors, potato growers, flavour wizards and more, Crunch is a moreish read spanning 150 years of crisp history.