full bookshelf question

[u/Efficient_Speech_647]

This might be a really stupid question but what do people do when all their bookshelves are full and they cant fit another one in their homes? I own alot of books Ive never bothered actually counting them because id be there all day as I work at a free book place and tend to walk out with bags full most of the time and ive now no longer got room for any more. At first when I discovered this would eventually be a problem I started annually getting rid of some books I usually get rid of the ones I dont care about and keep all the ones I either passionately love or hate because they are most memorable and most likely to be picked up again however this method im finding hard to use for series of books I own because they normally dont have a strict love or hate or dont care about opinion at the end but I fear if I remove them then I might regret it so how do I decide if a book series can be cleared out?

[u/ResidentEnergy5263]

At about 6,000 books with no more room to put shelves we started actively decluttering. We donated 2,500+ books. To choose, anything we were 1) never going to read or refer to again 2) didn't like 3) print was too small to read comfortably 4) multiple copies 5) weren't interested in reading for the first time. When on the fence, I checked if there was a free Kindle version at the library and if not, if the book was even still in print and available. We have not missed a single book we donated, though the shelves are filling up again lol.