In reply to Maestro Mike:
Trad Climbing+ by Adrian Berry and Jon Arran is a fantastic book to introduce you into mountaineering. If you're looking to develop your technical rock climbing outdoors then I'd recommend learning the rope work at your local crag before deploying them on a technical mountain route. Or joining a mountaineering club.
If long stuff is more what you're looking for then "High: advanced multipitch climbing" by Andy KP is a great extension to the beginners books on trad.