I had read a few other books by Sarah Pinborough but didn't really know what to expect with Poison.
A fairy tale with a twist? It's been done in many ways, but this one has its own unique flavour (and a bit of saucyness). You are given an alternate view of Snow White and the Queen and their motivations and desires. The characters are not quite what you expect them to be and the tale ends in an unexpected way.
Not only is it a fast, interesting read, but the book design is beautiful & high quality, complete with lovely line illustrations.
If you read the next book in the series, Charm, some of the characters from Poison make an appearance.