Also check if you're in education at any level. Most university libraries subscribe to what used to be Safari and you can SSO the full (enormous) catalogue. I didn't realize this for quite a long time as it's not widely advertised. There are ton of books that aren't the traditional animal-drawing tech titles, including Manning, as well as some lecture series.

But the app is pretty kludgey and it's way more locked down than other publishers who will give you chapter PDFs.

At least it's a good way to skim books to see if they're worth buying a physical copy.