Where can I find PDF books to download?

Hi folks,

Money is a bit tight this month, and I was wondering if anyone had any good websites where I could download free PDFs.

Would you happen to have a list of sites so I can have a few options?

I think we could all use this as a resource for free PDFs.

Thank you in advance!

Edit: Here is the article with lots of great free download PDFs: https://www.pdfreaderpro.com/blog/download-free-pdf-books