Instead of reading up on an industry the night before the interview, start as soon as you realize which industries interest you.
There are several library resources for industry reports. Capital IQ contains detailed industry reports from Standard & Poor's and is fantastic for larger industries. For smaller industries or for international reports, try Business Source Complete or IBISWorld. See the examples below:
Example: Get a report on the advertising industry in China from Business Source Complete:
To get a industry report in Capital IQ:
What is an industry code?
SIC and NAICS are classification systems for industries. They allow you to group together companies in a specific industry in a standardized way.
Where can I find industry codes?
SIC and NAICS codes and code definitions are available from the Census website.