Mine was The Ancient Engineers, by L. Sprague de Camp. Though he's primarily known as a sci-fi writer, the author did this as a well referenced, fact based history of ancient technologies and engineering. It delivers a great perspective of how knowledgeable and advanced ancient people actually were. Basically how they were just like us in an earlier time, and how one simple invention or discovery was used as a stepping stone onward and upward to the advancement of civilization as a we know it today. It's a great easy read and an eye opener when it comes to advancements in technology in general. How even something as simple as the innovation of adding a stirrup on a saddle can lead to great improvements in human history.
Yes, there are many books that help shape our thinking and lives. You're right.
I've been working through a back log of classics, and I'll say Faulkner is BORING! I respect how he writes, using dialect and vocabulary which lends itself to the subject, and he's so poetic. I fucking hate it Lmao.
Hard to say.
We the Living by Ayn Rand. An interesting story that also offered a glimpse of what living under communism was like.
The Lion, the Witch and the Wardrobe or Wrinkle in Time, because it captured my imagination as a child.
Any number of sci-fi books by P. K. Dick, Tolkien, or Isaac Asimov, who created worlds.
The Jungle, which sparked change which effected US agriculture industry.
I feel like I could go on and on. It's an impossible question.