Help converting a logo to CAD for printing on a product

My brother has a small business and wants me to make a special trinket with him with my 3D printer. I told him I could do this for him (I am brand new to the 3D printing world and was very excited that someone asked me to do something for them). My issue is, I don't know how to convert his logo to CAD. Would anyone know how to do this? I'm not even sure of the proper terminology to search this on Google or Youtube. This may be the wrong subreddit to post to so if anyone knows a better board, please let me know. Any guidance here would be greatly appreciated, even if its just pointing to a proper board for this post.