Mine are 2666 by Roberto Bolaño, Wild New World by Dan Flores, and The Horse,
The Wheel, and Language by David Anthony.
The first is an epic novel in the maximalist style. It’s good and highly acclaimed, but very long and dense.
The second one is an ecologist-type book about the history of wildlife in the US since pre-human times, through the migration & settlement by ancient humans during the Pleistocene, through the discovery & conquest by Europeans, through to modern times. I thought it was going to be more focused on pre-history, but that turned out to be just the first few chapters. It was still very interesting, if a bit preachy at times (from an environmental perspective).
The third one is about the origins of Indo-European languages among ancient peoples from the Russian/Ukrainian steppes, and their domestication of the horse and use of the horse & wheel to spread their culture and language throughout most of Europe and much of West & South Asia. Very interesting if you like linguistics & archaeology.