Finding audiobooks by Dr. Grant Catharina Maura takes a bit of detective work because their work isn't always on the biggest platforms. My searches usually start with the major dedicated audiobook retailers. Audible, as part of the Amazon ecosystem, tends to be the most comprehensive, so that's often the first place I check. I've found that sometimes a work is listed under a slightly different author name variation, so I try searching both 'Grant Catharina Maura' and 'Catharina M. Grant'. If it doesn't pop up there, I move on to other services like Google Play Books Audiobooks, Apple Books, and Kobo.
Beyond the giants, independent audiobook distributors can be treasure troves for academic or niche authors. I've had luck with platforms like Libro.fm, which partners with local bookstores, and even Spotify, which has been expanding its audiobook catalog. For more scholarly or specialized non-fiction, university press websites or academic databases sometimes have audio versions that don't get wide commercial distribution. A final, often-overlooked resource is simply searching the author's name alongside 'audiobook' on a general search engine; sometimes it leads to a publisher's direct sales page or a smaller platform that carries the title. The hunt itself can be part of the fun, piecing together an author's presence across the digital landscape.