The format is attractive in this series of books.  Good use of color and graphics, without having the color be a distraction instead of an enhancement.  The captions, and pictures are distributed in good coverage.    As with most new non-fiction books, this has a great resource list in the back to further your learning.  The only change I would make would be to tone the font size down a little.  Making the font BIGGER doesn’t make it EASIER to read.  I think the size should honestly reflect the level of the reading, and in nonfiction books of substance, it will be higher.  Recommended.