U-N-I-T-Y of Covers

I have finally come up with an interesting title for a post of mine (I channeled Queen Latifah)! Well, maybe not, but I came across a series of books by John le Carre that I found to have a nice sense of unity.

I have no idea if the cover images fit the content of each book, but I really like them. The designer maintains a simple, black and white theme while introducing a pop of color with the text of the title throughout the series.  The design is also very clean, which is a plus for me. The placement of the text and the typeface remains consistent, which makes each cover recognizable of the series when the books are purchased separately.