Only one manga, which is called simply Sailor Moon in english, though I think the new re-release puts "Pretty Guardian" at the top in tiny letters. Japanese purists may also label it "Bishoujo Senshi Sailor Moon" or "Pretty Soldier Sailor Moon."
There were somewhere around fifteen volumes of the manga in the original release. I think the latest re-release (both in Japan and in the US) had higher page counts and brought it down to about ten volumes. But the English re-release is only up to like Volume 5 or 6 or so right now.
There were five anime series, but they were basically just different seasons of a single series. The seasons go like this:
1. Sailor Moon
2. Sailor Moon R
3. Sailor Moon S
4. Sailor Moon SuperS
5. Sailor Moon Sailor Stars
All in all the anime is about 200 episodes, as I recall. There are also three anime movies--Sailor Moon R, Sailor Moon S, and Sailor Moon Super S. These are separate stories from the seasons they're named for, and I don't think they're based on stories from the manga. They're pretty good, and I'd personally consider the Super S movie to be better than the Super S season, all told. There was also a Sailor Mercury special that was based on an omake in the manga I think. I haven't seen that one. I don't think any of the other senshi got their own special.
Finally, there was a Tokusatsu series three or four years ago called Pretty Guardian Sailor Moon, which is inspired by the same storyline as the first arc of the manga and the first season of the anime, but is probably at least as different from either as the anime adaptation is from the manga.
There are also some musicals called Sera Myuu, but they're little more than fan productions and I don't know that you can even find recordings of them.