For those hard-core catalogers and metadata librarians, Karen Coyle has done you a favor. First she wrote a great book on FRBR called FRBR: Before and After. The book gives a great introduction to FRBR explaining, among other things, what a Work, Expression, Manifestation, and Item all are in simple, easy to understand text. Second, she released it under the CC-BY license. Basically this means its free! Read the whole book now.
On her site, she explains why she did it:
“As promised, as of January 2016 the full contents of book available for Open Access with a CC-BY license. If you (or your library) can afford the hard copy I encourage you to purchase it. I earn $0 from sales, but ALA Editions generously allowed me to exchange potential royalties (which would have been quite small) for the privilege and advantage of having a professional publisher. This book would not have happened without their effort, and I greatly appreciate their willingness to make this exchange that is, in my opinion, a win-win-win (for me, for ALA Editions, and for readers).”
We hope this, along with other authors, increases the amount of books and articles under the Open Access umbrella. Well done!