The two top reference databases (encyclopedia articles on a huge number of subjects) — for background information
The three largest and most comprehensive databases for both scholarly and popular books and articles:
Databases for both popular and scholarly e-books
Databases for scholarly e-books
How to get research help from a librarian
Librarians are available to help you 24 hours a day, 7 days a week, 365 days a year through the Lehman College library chat service. Real, live, human librarians are available there to help you with your research at any and every time. You can also make an appointment to get extended one-on-one help from a Lehman College librarian. Here is a list of Lehman librarians. Find the one that matches your subject and email them to ask for an appointment.
You can also chat with NYPL librarians, Monday through Friday, 10 AM to 6 PM at this link. Or you can speak with someone by phone. Dial 917-ASK-NYPL (917-275-6975), Monday through Friday from 10 AM to 9 PM and Saturday from 10 AM to 6 PM. You can also make an appointment with an NYPL research librarian at this link.