Great find. Thanks.
There is at least one other Routledge webpage listing
freebies. It is
here.
Why the multiple pages? Are there some things on one webpage that are not on another? I haven't had a chance to compare them. So, I dunno.
The page that I referenced organizes the books by copyright and/or publication date--there are many from 2016. At least one of the books is a compendium of excerpts from a larger (of course. duh!) book which is sold on a regular basis.