I'm in an online book club for this book and I almost dropped out but I started back this week (still early in the book) and I think I'm back in. Not being a systems engineer a lot of this is more in-depth than what I know, but I really like the writing style - it's not afraid to make jokes and be idiosyncratic. It seems interested in describing in basic/simple terms partly because that is a challenge in and of itself - and if you really understand something you should be able to break it down that simply. The section I just read was about creating programs - fork and exec. Not saying I absorbed all of it but it did have this feeling of "oh you're describing something that has subtly guided how I experience computers but that I never realized was operating". That is a fun feeling!