I've mostly stopped recommending O'Reilly books at my public library because in many cases the printing has been so bad, it's embarrassing. Just-in-time manufacturing, I guess.

It's not like the old days when books were heirlooms with attentive layouts, quality paper and ink, and solid bindings. Addison-Wesley's offerings come to mind, even softcover books from Prentice-Hall. And especially the ancient Computer Science Series from McGraw-Hill College.

Manning and No Starch do a better job these days.

Here's a new hardcover many here could appreciate:

Heavy Wizardry 101: Shellcodes, Backdoors, Droppers, and Worms

by David Martínez Oliveira, aka Pico

https://nostarch.com/heavy-wizardry-101

s/mostly/almost/

O'Reilly still puts out many great, serious books with good formatting and decent binding + paper + printing.

Many of the new titles on machine learning, for instance.