Dr Gareth Moore is the author of a wide range of brain-training and puzzle books for both children and adults, including The Mammoth Book of Fun Brain Training, Keep Your Brain Fit: 101 Ways to Tone your Mind and The Rough Guide Book of Brain Training. He is also the creator of online brain training site Brained Up (www.brainedup.com) and runs the puzzle website www.puzzlemix.com. He gained his Ph.D from Cambridge University (UK) in the field of Machine Learning, and has contributed to various advanced projects for leading technology companies.