delericho
Legend
If that were the case then no one would ever get anything from a library or a bookstore.
Most novels are neatly standalone, so it doesn't matter too much what you get. Where they are in series, they're neatly listed as "Volume One" to help people to know where to start.
But the Wall of Books remains a thing even so - a few years ago I helped out a mother who wanted to buy a Terry Pratchett Discworld novel for her son and who didn't know where to start.