Katie Wood is a practising teacher and amongst the UK's most prolific maths educational authors, having authored or co-authored numerous titles across Key Stage 3, GCSE, A Level Maths and Further Maths. She also has wide experience of authoring digital maths resources. Jemma Sherwood is both a highly accomplished teacher and author. A former runner-up for Teacher of the Year in the Pearson Teaching Awards, she runs regular PD courses, including those to enhance the maths skills of non-specialists. She is the author of How To Enhance Your Mathematics Subject Knowledge: Number and Algebra for Secondary Teachers (Oxford University Press, 2018).