Craig Barton loves teaching, doing, speaking and thinking about mathematics. He taught maths in secondary schools for 15 years, and was TES maths adviser for 10 years. He is now the head of education at Eedi. Craig is the author of the best-selling books How I Wish I'd Taught Maths and Reflect, Expect, Check, Explain, the host of the Mr Barton Maths podcast and the Tips for Teachers podcast, and the creator of far too many websites, including mrbartonmaths.com, tipsforteachers.co.uk, diagnosticquestions.com, variationtheory.com, and ssddproblems.com. In 2020 he was appointed as visiting fellow at the Mathematics Education Centre at the University of Loughborough. Craig has been lucky enough to teach maths and work with teachers all over the world. His proudest achievements are convincing Kate to marry him, and being the father to their wonderful boys, Isaac and Jacob.