Ned Potter’s UX in Libraries resource list is a great place to start and includes a reading list as well as websites and presentations.
The Weave Journal of User Experience is an open-access, peer-reviewed journal for Library User Experience professionals of which Matthew Reidsma is editor-in-chief.
Nancy Fried Foster and Susan Gibbons’s seminal library ethnography publication: Studying Students.
Everything that has been written about UXLibs conferences is collected together on the Conference Reviews page.[Image credit: Binoculars Portrait by gerlos]