All depends what you are trying to do. I've produced a whole series of chapbooks mostly of my own songs, as a way of keeping the words and the chords handy for, my own purposes, but making a few dozen so I could give them to people who asked for words. Each one with a dozen or so songs, or a few more.

Doing it like that, it's easy enough to do it yourself - print out the words via the computer, cut them out and paste them up with a few pictures maybe, then photocopy the paste-ups two-sided, guillotine them and staple them and trim the edges.

Anything over 40 pages or so folding and stapling becomes a problem, and you'd need to have some more advanced form of binding. And there's a scale at which it'd be cheaper to get the pages printed offset or something instead of photocopying. And if you can write music life gets a little more complicated, but not very, since that's really just another picture to be pasted in. (And I know there are some people who like the idea of doing the whole set-up through the computer instead of having past ups, though myself I like the hands on feeling of doing a paste-up.)

But I think there's a lot to be said for doing the whole thing on a small scale yourself, of that's practical.