At the start of the last 4 years, I've taken a picture of my TBR shelf to track how it's changing over time. It's clearly expanding for one thing 🤔 And there is some overlap between years: even though it's not too much to read in a year, there's still e-books and others I read right away for challenges or readalongs. I try to read everything within 2 years, but Jim Crace's The Devil's Larder has remained for 3, so I'll have to get to it soon!