How can a person know when one can purchase individuals volumes from sets of books?
The logos.com products page will list the books individually if they are available.
As Fred said, sets broken up are usually listed at the top of the New Products page.While there used to be a Logos updated forum thread communicating new collection breakups, I would be interested in an e-mail digest of weekly breakups if offered by Logos.
As the guys indicated, Dennis, you have to search on the Logos site for the title or author to see if it's sold separately.
However, Bob P did indicate that that could change one day in this thread.