You can do this several ways but one of the easiest is to try an author search in OneSearch from the Library's homepage. Just enter the author's name and press the OneSearch button. This will work with firstname lastname but you get better results if you use lastname firstname in quotes like so "weiss stephanie". You should see articles an books by that person but you can have the system do an author search to get a more concise list. Just click Advanced Search.
Your search box will change to this:
Where it says "Select a Field" next to the box with your searched name, change that to Author.
You can also do this within most of our research databases and the classic library catalog interface (in-house books and media). Look for "Advanced Search" if a basic keyword search doesn't get you there.