Four series have been published by the team behind the Philological Forum journal.
- In the International Philological Forum series (ISSN 2535-1354), we published proceedings of conferences organised by the editorial team of the Philological Forum journal, as well as other academic works submitted to the editorial board. The series was published between 2017 and 2023. Twelve volumes were published in that time.
- In the Event and Text series (ISSN 3033-1021), we publish articles and studies in the field of the humanities. Particular emphasis is placed on reviews of literary and academic books, as well as reports on cultural and academic events. The series has been published since 2024.
- In the Creative Series (ISSN 2603-4980), we publish literary works by young Bulgarian authors. The series has been published since 2018.
- In the Experior series (ISSN 2815-3731), we publish peer-reviewed articles, studies, monographs and translations by early-career and established scholars in the humanities.