Ivy and the Inky Butterfly is by the pioneer of the adult colouring industry, Johanna Basford. This is her most recent colouring book and is the six that she has published. This book is a little different, as it is also a storybook. I have the US edition.
All pictures were coloured with Prismacolor pencils, as well as black Faber-Castell Pitt Artist brush pen and a variety of gel pens.
For more information on this book and details on how I coloured the drawings please see my post, Book Review: Ivy and the Inky Butterfly.