H-1B visas play a very important role in hiring foreign born skilled workers for Specialty Occupations in the United States. This visa system has largely benefited the U.S economy, benefitting the Information Technology (IT) industry the most, with the flow of skilled foreign-born employees. Due to the growing concerns over misuse and a perceived threat to domestic jobs, stricter scrutiny on H-1B petitions has increased in the past few years. With my experience as an evaluator, I have observed the process from a close quarter and identified several key issues. One of the most contested issues is that of “Specialty Occupation.” This book tries to provide a better understanding of the issue and also identifies some common errors in H-1B petitions. Additionally, it aims to be a one-stop reference to employers, attorneys, and expert opinion evaluators on the issue.