It’s more necessary to focus on air quality, plus that easily means keep your books in their own space plus not out in the common areas.
Usually I deal with a great deal of high end customers, who have a bunch of money to invest in their collections. I recognize this is why a vast majority of rare book collections are owned by the ultra-wealthy because no one else has that much money to throw away on something they don’t necessarily need. As much as I appreciate books, they don’t feed your family or help you survive either for that manner, they are a luxury item. If you have books or comic books that you want to maintain, but don’t have mountains of currency to waste, you can use your HVAC appliance or a few small tweaks to achieve awesome results. The largest piece of advice UI can supply you is to worry about consistent air quality for your collection. That goes well beyond temperature control, because within a relatively wide range your books will be good as long as the temps are totally stable. It’s more necessary to focus on air quality, plus that easily means keep your books in their own space plus not out in the common areas. You’ve seen bookshelves in peoples rooms, plus that is where dust piles up because of heavy traffic plus much lower air quality. After clean, consistent air quality, you need to focus on the levels of humidity your books are regularly exposed to. It is more pressing to those people in the South to have a dehumidifier for their book collections, but in general I recognize everyone should have something like that… Books are so sensitive to moisture, it is totally worth the small expense to get a dehumidifier to keep them protected.