The act of operating of a library; service as a librarian(noun)
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Use "librarianship" in a sentence
"The Kaleidoscopic Concern - This annotated bibliography on racial and ethnic diversity in librarianship by Kaetrena D. Davis-Kendrick includes new areas of study such as gender issues and white privilege with regard to racial minority and ethnic librarians."
"The fellowship is awarded every two years to a student pursuing graduate studies in librarianship, the information sciences, or a closely related field, who demonstrates intellectual and personal qualities consistent with those of Paul Evan Peters"
"Uncontrolled Vocabulary - a live discussion of news, trends and topics in librarianship by Greg Schwartz."