Dear Uri,

You can use this R package to easily download all books, or a selection of books (for example, books about machine learning): https://www.statsandr.com/blog/a-package-to-download-free-springer-books-during-covid-19-quarantine/

Note that I am not the author of the package, but it saved me a lot of time so I believe it would be of interest to others!

Best,

Antoine