I find it hard to explain clearly, but I often marked certain books as 'read-alternative-edition' on Goodreads and displayed them as read. For example, I completed reading the entire Hitchhiker's Guide to the Galaxy series, but I marked 'The Restaurant at the End of the Universe' as an alternative edition. This allowed me to easily see in lists that I had read different editions. Currently, the book is added to a list, but it would be helpful if this was visually indicated.