Book Cover Doppelgangers

I was wandering around the book store searching for the book "The Spy and the Traitor" by Ben Macintyre. It was to be a gift for my dad. I scanned the shelves for the cover - black, white, and red with a silhouette of a mysterious mad walking toward some Russian buildings.

Ah-ha! There it is!

Oh, wait. That's not it. I held up the picture on my phone next to it. I continued to search and finally found what I was looking for.

Here it is.

Can you see why I was confused?

Different title. Different author. Different publishers on a different date.

Both black, white and red. Both with a silhouette of a single man walking towards the same Russian buildings (one is a little closer than the other).

They were so close I took a photo of them together:

So, am I missing something or is this just a coincidence? Is there some sort of relationship between them?

I did a search but couldn't find anything about these cover, but I did find links to lists of other books that are similar. Seems to be something that happens quite often.

• Same Cover, Different Book.
• COVER CLONES!

What are your thoughts about books with similar covers?

What would you do if you found a book with a cover that was almost the same as yours?