Most often I deal with high end clients, who have a good amount of money to invest in their collections.
I guess this is why most scarce book collections are absolutely owned by the ultra-wealthy because nobody really has that much money to toss on something they don’t need.
As much as I love books, they don’t feed your family or help you get by. They are a luxury item, and with that said, if you have books or comic books that you want to maintain, but don’t have mountains of money to toss away, you can use your Heating, Ventilation and A/C machine or a few small tweaks to come up with wonderful results. The largest piece of advice UI can supply you is to worry about having excellent air quality for your collection. That goes way beyond temperature control, because within a relatively wide range your books will be awesome as long as the temps are perfectly stable. It’s honestly more substantial to focus on air quality, plus that basically means keep your books in their own space plus not out in the proper areas, and you’ve seen bookshelves in peoples living rooms, plus that is where dust piles up because of heavy traffic plus poor air quality. After clean, consistent air quality, you need to truly focus on the levels of humidity your books are exposed to. It is honestly more substantial to those people in the South to have a dehumidifier for their books, but in general I suppose all the people should have an HVAC component like that, however books are so sensitive to moisture, it is worth the expense to get a dehumidifier to keep them safe and dry.