Source: Stony Brook University Libraries
The following is a list of features that are typical of a predatory publisher. The list comes from a personal communication on the MEDLIB-L listserv on behalf of Lara Lasner-Frater, Electronic Resources Librarian, Sirota Memory Library - Touro Harlem (2019, June 18):
The document below includes even more examples.
Both are written by David H. Kaye, Distinguished Professor of Law Emeritus at Penn State.