I am looking for a street map guide for the Phoenix Arizona area
Thanks for your question! As far as physical maps held by Omaha Public Library, I really didn't find much that would be of use to you - we've got a tourist map of downtown Phoenix, plenty of road atlases, and USGS topographic maps of Arizona, but none of those tools will show street addresses of individual houses.
In this case, I think you'll have much more success with the parcel maps avaiable on the Maricopa County Assessor's Office website. It displays properties by parcel number, but with a quick click you'll get the street address, too, or you can search by street address. If you're working from a list of addresses - places you've seen in real estate listings, etc. - a Google Maps search is even easier, much as I hate to admit it - just type in the street address of the property you're looking for and it should zoom right in to the location.
Hope that will get you off to a good start! If not, please feel free to email back or call 402-444-4800 for assistance.