Here’s some links for Audit and IT Audit for dummies, one from the IIA, the other from ISACA. Neither require being a member or logging in.
While these articles are not extensive, they will point new auditors in the right direction, and provide a refresher for the rest of us.
For all auditors, IIA’s Back to Basics features topics such as:
For IT auditors, an advanced Google search of isaca.org for the phrase “IT auditor should know about” provides a series of articles by Tommie W. Singleton such as:
Here’s a shout out to madzutopia who left me a comment about audit basics, so I hope this helps.