Predatory publishing is a growing issue in academia. Dodgy publication volumes have increased from 53,000 in 2010 to an estimated 420,000 articles in 2014, published by around 8,000 active journals. It creates an environment in which requests to submit to particular journals, or contribute to academic output in the form of book chapters, are to be treated with caution. I started a thread on Reddit’s #AskAcademia on this very topic:
I got asked to contribute to an edited book: genuine request or predatory publishing? from r/AskAcademia