Ed Southall has worked in maths education for over 20 years in local, national and international roles and across all age ranges. He is the author of a number of maths education and teacher training books, and can be found running up hills in Yorkshire most weekends, preparing for another brutal marathon some place mad. Hywel Roberts has taught in secondary, primary and special settings for almost 30 years. He contributes to university education programmes and writes regularly for TES as the 'travelling teacher'. A true Northerner, Hywel deals in botheredness, creative practice, curriculum development and imagineering. He was recently described as 'a world leader in enthusiasm' and his first book, Oops! Helping Children Learn Accidentally, is a favourite among teachers. Hywel is a much sought-after educational speaker, an Independent Thinking Associate and has contributed to events worldwide. He also contributes fiction to prison-based literacy reading programmes developed by The Shannon Trust and is a Fellow of the Royal Society of Arts.