The lead section is long and contain historical information about library schools (not library and information science) that does not need to be in the intro/lead. I would move some of the lead paragraph down to a new section titled History.
I would try to create a clearer lead section that indicates Library and Information Science is a profession, and a quick understanding of what LIS professionals do.
The second sentence talks about the acronym SLIS and how that name is used by universities. I would change that lead info to link to the Education for Librarianship page.
There are three large indented sections of quoted material. According to the Wikipedia training, this is not the preferred way to include information, so I would update to indicate what the information states in my own words and then link to the cited resource.
There are statistics listed on dissertation use of the term from 2009 and 2011. I would try to update this information to more recent statistics.
There is some information that does not seem neutral, and does not contain citations relating to the information presented. I would either add "citation needed" or remove/rephrase. For example:
" Library schools have mainly educated librarians for public libraries and not shown much interest in scientific communication and documentation."
The whole 'documentation science' paragraph seems to be missing reference/citation information
