Tressa @ Wishful Endings has challenged us to come up with four books of ours that have covers with the same color or colors.  I chose to go with sky blue:

• Half the Sky by Nicholas D. Kristof and Sheryl WuDunn
• The Way of Kings by Brandon Sanderson
• So You Want to be a Wizard by Diane Duane
• A Wrinkle in Time by Madeleine L’Engle

Dresden decided he wanted to help me.  Either that or he felt an urge to check out the So You Want to be a Wizard book.  His namesake is a wizard, after all.