[The Big Ideas Simply Explained books] are beautifully illustrated with shadow-like cartoons that break down even the most difficult concepts so they are easier to grasp. These step-by-step diagrams are an incredibly clever learning device to include, especially for visual learners. - Examiner.com The visual layout promotes browsing with illustrations, pull quotes, and simple mind maps to explain concepts quickly. - Library Journal Accessible guide to the great thinkers. - School Library Journal