Wow! What a fantastic story! I'm not really sure how this is being compared to The Martian. This book is as far from The Martian as Mars is from uh...umm..Earth! I can maaaybe accept that it is remotely like World War Z because of its format but even then the interviews in Sleeping Giants are of a completely different kind. 
 The plot revolves around a giant metallic hand and other body parts of a robot hidden deep underground. Throughout most of the book, our protagonists try and make sense of what this robot is, what it can do and who put it here. The robot is pretty badass especially when you consider it has a (view spoiler)[sword and shield! (hide spoiler)] 
 The book is done in the form of interviews with the main characters and some side actors. Each interview is given a file number and a location. The rest of the chapter follows a two-person conversation and it is done brilliantly! It's hard not to love the unnamed character who does most of the interviews. He reminds me of the "cigarette smoking man" from X-Files. He is absolutely an amazing character who is made even more likeable because he is equal parts ruthless and committed to the cause and his team. I also liked Mr Burns. While his role in the events of the book wasn't exactly clear, he is quite important to the story and maybe we will learn more about him in the next book. 
 The book ends on a pretty good cliffhanger. My theory is that (view spoiler)[the original Rose Franklin was kidnapped and one of Mr Burns half aliens took her place. She had enough knowledge about the robot to be effective in finding the parts and putting it all together. Another plausible theory is that after she was killed, Rose Franklin was cloned and/or resurrected and sent back without memories. One indicator to this is that in the last conversation between Mr Burns and our unnamed man, Mr Burns says "you owe me a big one" but doesn't explain why. Though, if they did resurrect Rose, why not do it with her memories intact? (hide spoiler)] 
 Waiting anxiously for the next book! April can't come fast enough.