Exploring what you really believe, Tim Challies and Josh Byers bring basic theology, presented in understandable text and colourful diagrams. They have a Periodic Table of the Books of the Bible, graphs, flow charts, Venn diagrams, and all-around great illustrations.
As someone who doesn't read much non-fiction, I've always found the theology books rather intimidating, and occasionally wordy. Challies and Byers make theology more approachable, and for the visual learner, so much easier to tackle and remember. The illustrations and colour make every point stick that much more.
Tasteful, and creatively done!