"When we took our project to the joint OLA/WLA conference in Portland in April 2002, we were somewhat surprised to find that what we had previously considered a good demonstration of interdepartmental collaboration in an academic setting actually drew more interest from the public librarians than academic ones. We were pleased that librarians were interested in our project, especially because libraries serve as such a great source of reading material for teachers, mental health workers and parents who are trying to help children and young adults with issues. Not surprisingly, librarians were the first partners with healthcare professionals in using books therapeutically in the early 1900’s; it’s only in the last few decades that the dominant discussion of bibliotherapy has shifted from the library and medical literature to that of mental health and education."
Draft article for OLA Quarterly, Paula McMillen, PhD, Oregon State University Libraries, June 2006
In 2016 this still continues to be the case, though there is a marked increase in the acceptance of Reader Response Theory in the way that literature is being taught today suggesting that bibliotherapy might become a more popular method in the field of Expressive Arts Therapy.
"Although we began with a focus on children’s books, our future plans include greater coverage of resources for young adults, adults and multicultural materials."
From review of the resource in 2016, the database still seems to be primarily focused on children and young adults with inclusion of multicultural materials. LitMed still seems to be the best go-to resource that I have found to date for adult reading level fiction title recommendations.