On January 2009, it was announced that Simon's Cat would be published in book format. Canongate released the title on 1 October 2009 in the United Kingdom. It was later released in many other countries and additional titles in the series were subsequently published. There used a Simon's Cat newspaper comic strip that ran in the Daily Mirror from 2011 to 2013. The series is animated with the Adobe Flash software. The pictures are hand-drawn electronically, using an A4-size Wacom Intuos 3 graphics tablet.