You'll have no trouble finding the Family History Library in Salt Lake City. It's on the west side of Temple Square which is in the center of downtown Salt Lake City. There are plenty of staff members and volunteers on hand to help you, especially on the main floor where you find U.S. and Canadian reference books. U.S. and Canadian film and microfische are on the second floor. Your main interest will probably be the first basement which includes German research material as well as material from most other foreign countries other than the British Isles. The second basement has material from the British Isles. I was able to trace my Haas family back to Wurtemburg through references and microfilms available on the first basement. Across Temple Square to the east is the Joseph Smith Building where you will find on the fourth floor books and other material related to specific family histories. I don't think there are any Haas books but check the library catalogue which will list any book which include Haas families. There is also a large collection of family group sheets on the fourth floor. Joseph Smith also has many computers available for public use on the fourth floor and on the ground floor which are tied into the LDS Family Search data base. Northeast of the Joseph Smith Building is the Church Office Building where you will find excellent food at very reasonable prices for breakfast and lunch (but you need a pass which you can obtain in the lobby of the main library building). As for what to take, mainly you need the basic information on the families you are researching. This is a fabulous facility where you could spend weeks (many people do). Your best bet to prepare yourself is to visit your local LDS Church (Mormon) Family History Center which is open to anybody doing genealogical research. Brigham Young University, which also has an excellent genealogical section in its library, is about 40 miles away in Orem, UT. Another way to become familiar with the Salt Lake City Family History library is to take one of the many Elderhostel programs officer by BYU. My wife and I have been to five of them. Hope this is helpful. Dave Coslett