My favorite was Dark Invasion, a history of German covert operations in the United States during World War I. This book got me wondering about other foreign covert operations in the United States. Hmm. Might be a thriller in there somewhere.
Atomic Accidents was the most scary in its detailing of the countless nuclear accidents and potential disasters. Many were kept secret for decades and several resulted in numerous deaths.
The most fun was Inferno, Dan Brown's latest Robert Langdon thriller.
What was your favorite book this past year? Looking for a good couple reads in 2015? Make sure to check out my National Park thrillers.