open-stack

[ oh-puh n-stak ]
/ ˈoʊ pənˈstæk /

adjective Library Science.

having or being a system of library management in which patrons have direct access to stacks for browsing and selecting books; open-shelf.
Compare closed-stack.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019