Dear Ahmad Alsuwaidi

The publisher MDPI is discussed here on RG numerous times. It boils down to the two opposing opinions “they are predatory” or “they are good”. I think that a lot of the criticism is due to the fact that MDPI is one of the first very successful publishers that publish exclusively according to the open access model which is new and fuels the gut feeling that this cannot be right.

Personally, I think that journals that are indexed in Scopus, in one of Clarivate’s indices etc. and attract sufficient number of well-established names that are publishing in them is a safe choice. My personal experience in terms of peer review with two of their journals was the same as those from publishers like Elsevier, Springer.

But back to your question I think that the key factor here is to diversify. I see that you’ve published two papers in journals of two well-known publishers. Adding one paper in a MDPI journal is just fine. If for example your fourth paper is published in one of the fine Springer journals (or one of the many journals of ACS publications) then your list of publications looks more than okay.

Best regards.

PS. See also the following post https://www.researchinformation.info/analysis-opinion/predatory-journal-how-the-publishing-elite-weaponise-vocabulary/ Where he said and I quote: "Before dismissing a journal as “predatory,” ask:

• Is it indexed in recognised databases?
• Is it a member of COPE?
• Is it verifiable using the Think.Check.Submit resource?
• Does it disclose its editorial and peer-review policies?
• Does it have a transparent fee structure?
• Are its articles visible, citable, and corrected when needed?

If the answer is yes, then maybe the journal is not a predator."