Understanding the US Visa System
I read a lot of my wife's Chemical Engineering magazines, I find it really fascinating to learn about their values, debates, methods, tools, and culture. I found this article especially useful, an article by someone at the US Department of State as to how the US visa system works, why people are rejected (apparently 3/4 of visa applications are approved), and how best to prepare for a visa application. Very useful. http://pubs.acs.org/cen/government/89/8901gov3.html