G L MooreG L MOORE is the author of a wide range of brain-training and puzzle books for both children and adults, including The Mammoth Book of Brain Games, The Mammoth Book of New Sudoku, and The Rough Guide Book of Brain Training. He created an online braintraining website called BrainedUp.com and runs an online puzzle site called PuzzleMix.com. Gareth has a PhD from the University of Cambridge in the field of Machine Learning, where he taught machines to understand spoken English. Read More Read Less