Also known as scholarly, refereed, peer reviewed, or academic articles.
In general, be sure to use books written for an academic or scholarly audience instead of those written for a popular audience.
E-books provided by library databases can be read online and provide options for searching the entire content of the book so that you can skip directly to the sections of the book focused on your topic.
NOTE: This does not search all of PCC Library's e-book databases.
Information written by reporters (AKA journalists) on topics of current interest.
IMPORTANT NOTE: Not all news sources are created equal! Some have hidden (or obvious) motives or political beliefs. Do some background research into who owns the news organization to learn more about it.
Statistics provide an interpretation and summary of data. Statistics can be numbers or percentages in an article, or tables, charts, or graphs.
Data is the raw results of research. It is a primary source and can be analyzed and interpreted.