Ohhhh I feel your pain!!!
Those old encyclopedias. Due to the glue and old paperstock, they do not recycle.
Landfill 'em.... or.... some people tear them out, and print artwork on them!!!

Here's a link to just the one:
https://www.amazon.com/Dictionary-Art-Print-Tearing-Recycled/dp/B00QVPEDI8/ref=sr_1_28?keywords=art+prints+on+old+dictionaries&qid=1668383925&sr=8-28