Titan Books is a UK-based publisher. They are part of Titan Entertainment Group, which you can learn more about here.
They publish a wide range of nonfiction, fiction, and graphic novels, but most of the fiction and graphic novels they publish is licensed from overseas and they are only open to direct submissions in the other categories, or from authors interested in working on licensed fiction they have already contracted. You can get a good feel for what they publish by going here.
This is what they are looking for currently in terms of nonfiction:
Non-Fiction Film & TV
We are looking for strong proposals for popular, cult, science fiction, horror and fantasy film and TV reference and tie-in titles. We prefer writers who have a proven track record in this area (if not in books, then in newspapers or magazines) and good contacts in the film and TV industry. We do not publish or commission original scripts. We are also interested to hear from writers who would be interested in working on licensed publications we have already contracted.
Non-Fiction Art & Comics Reference
We are looking for strong proposals for these titles, preferably creator or character-led. We prefer writers who have a proven track record in this area, and good contacts in the art & comics world. We are also interested to hear from writers who would be interested in working on licensed publications we have already contracted.
Emily Harstone is the author of many popular books, including The Authors Publish Guide to Manuscript Submissions, Submit, Publish, Repeat, and The 2021 Guide to Manuscript Publishers.
She regularly teaches three acclaimed courses on writing and publishing at The Writer’s Workshop at Authors Publish. You can follow her on Facebook here.