There was a time when manuals was kinda big physical books. I think I have a word perfect one that is the size of a textbook. It was not about getting a result

There was a time when manuals was kinda big physical books. I think I have a word perfect one that is the size of a textbook. It was not about getting a result (any result) in 5 seconds. It was more about having a goal and browsing through relevant sections to learn how to do it.