Free Textbooks from Springer

[Eric Rechlin]

This was quite fascinating. As Bob said, you have to filter by "Only Open Access Books" to get the ones that can be freely downloaded. But even then, there are well over 1400 books to download.

If you try to download those, some need you to fill out a CAPTCHA to verify you are human. You can identify these in the spreadsheet by the penultimate column, "Open Access", where FALSE in that column means a CAPTCHA is required (yes, this is named confusingly with the "Open Access Books" above but it is independent).

That leaves 1051 of the books are then trivial to download by automated means, which I did. Although the remaining books needed a CAPTCHA, that was surprisingly easy to bypass, so I downloaded all those too.

Now I have 1433 books downloaded in PDF format (most in English, with 75 in German and 3 in both languages), adding up to 13.5 GB.

Thanks for sharing, and for the challenge!