2Neat has retired and thanks you for your patronage over the years!
Desperately need a geology publication? Here are a few other good sellers:
MS Book and Mineral Company https://booksgeology.com/
Geoscience Books - Phillip Huber https://www.geosciencebooks.com/
PaleoPublications - Nate http://paleopubs.com/ (Much more than paleo)
Robert Gavora, Fine and Rare Books https://www.robertgavora.com/
Zubal Books https://www.zubalbooks.com/
Weller Book Works (on Addall). https://www.wellerbookworks.com/
Powell's Bookstores (on Addall). https://www.powells.com
ADDALL https://www.addall.com/used/ is a conglomeration of sellers and incorporates Abebooks, Alibris, Amazon and more.
Many of the above sellers list on ADDALL as well. Here are a few other good names to recognize on ADDALL.
Eryops Books
Larry W Price Books
Porter Books
Donald E. Hahn
Zentralantiquariat Leipzig GmbH (in Germany)
Lingua Terrae Books (in the Netherlands)
Note: Shipping from abroad is often not that expensive and those two international sellers are good ones.