Over ten years, the number of full-time equivalent (FTE) Librarian/Media Services directors (as reported to DESE by districts) has fallen from 833 in 2007/08 to just over 628 in 2017/18. The numbers represent the number of staff (FTE) who are assigned as Librarians/Media Services directors; the data do not specify the licenses held by these staff members.Check out the school and district level data here.
For context, there are 406 school districts and 1,847 schools in Massachusetts in 2017/18.