One of the methods that many travellers use to prepare for their journey is to read about the area. The following are books recommended for travellers planning a trip to Vienna:

Guidebooks:
Lonely Planet Vienna by Neal Bedford and Jane Rawson.  This comprehensive travel guide provides travelers with information on everything that there is to do in and around Vienna.
Eyewitness Guide Vienna by Stephen Brook.
Rough Guide Vienna by Rob Humphreys.
Cadogan Guide Vienna, Prague, Budapest by Mary-Ann Gallagher, Sadakat Kadri, and Matthew Gardner.  This travel guide is good for visitors who are planning to explore not only Vienna but also the surrounding areas.
Vienna’s 25 Best by Fodor’s.  This book is excellent for travelers visiting Vienna for only a short period of time because it describes the best of the best thing which should not be missed on a Vienna trip.
Only in Vienna: A Guide to Hidden Corners, Little-known Places and Unusual Objects by Duncan J. D. Smith. This richly illustrated off-the-beaten-track guide to more than 80 fascinating and unusual sights will appeal to explorers and independent travellers.

History and Memoirs:
Broken Songs: An Adolescent in War-Torn Vienna (Studies in Austrian Literature, Culture and Thought) by Graziela Hlawaty and Pamela Saur.  This book is right for readers interested in obtaining intellectual information about the area.
Fin-de-siecle Vienna: Politics and Culture by Carl E. Schorske.  This book takes readers back in time to experience Vienna as it was in the nineteenth and early twentieth centuries.
Last Stop Vienna: A Novel by Andrew Nagorski.  This novel set in Hitler’s Germany gives readers insight in to the history of the area without being overly-deep.

Online Travel Guides:
A vast amount of articles dealing with sightseeing and travelling in Vienna can be found at http://www.tourmycountry.com/austria/..., along with background information on Austria.
Detailed information aimed at expatriates can be found at  http://www.virtualvienna.net/main/