Please take a look at these overviews to New York Public Library Map division and NYC Maps. Spend a little time taking a look at these: they will make Tuesday’s class more meaningful.
You can see from the overview to the library’s map collection that they have many useful resources, both in print and online, that you can use for your research. They also have software tools onsite if you eventually want to play around with comparing maps or incorporating quantitative data with maps.
Please make more of an effort to be on time this Tuesday–we want to start all our archives visits no later than 10:45.