Oh, I love this kind of quick book ID question — I actually read "Bossman" a while back! The contemporary romance "Bossman" is written by Vi Keeland. I remember being drawn in by the snappy banter and the classic enemies-to-lovers / boss-employee tension; it’s one of those guilty-pleasure office romances that’s easy to devour on a lazy weekend.
If you’re hunting for a specific edition, I usually check Goodreads or Amazon first (cover art and ISBN help when titles repeat). If you meant a different "Bossman" — there are sometimes indie novellas or self-published titles with the same name — tell me what the cover looks like or where you saw it and I’ll help pin it down. Also, if you want recommendations similar to "Bossman," I can suggest a few books that scratch the same itch.