Tracy Packiam Alloway, PhD is a Psychology professor and Graduate Program Director at the University of North Florida. She specializes in working memory and its role in learning and the benefits of training working memory. As well as having written several books on the subject, Dr Alloway's work has been featured on The Washington Post and many others. ANA SANFELIPPO studied graphic design at the University of Buenos Aires, specialising in typography. She uses acrylics and inks in her illustrations, and creates artwork for patterns, products, books and magazines. She also lectures at the University of Buenos Aires.