The book for August, 2011 is In Pursuit of Elegance: Why the Best Ideas Have Something Missing by Matthew E. May.
The author examine the contribution simplicity makes in so many great achievements and businesses. Sometime the answer is not to add more, but to take something away. Symmetry, seduction, subtraction, and sustainable solutions are the four main factors that are examined in detail.
This is a book that will change the way you look at the world. Even if you’re a “more is better” person, you’ll begin to notice an elegance in simplicity and achieving greater success by subtraction.
There is a hardcover version and a paperback. The butterfly is on the hardcover. The cover of the paperback just has text. Either one is fine.

