The philosophical study of right and wrong is known as ethics. This field has been studied for thousands of years and today has applications in a wide range of fields. Related topics include business and economic ethics.

Mexico, officially the United Mexican States, is a federal constitutional republic in North America. Working may require a work visa, which is difficult to get if you just want to freelance for a short time. Most of the government funded universities on mayor cities (state capital) have short courses on history, gastronomy and cultural subjects, most of them are almost free.

A postgraduate certificate is an academic program that provides an in-depth and focused education to students who have already completed an undergraduate degree. Completing this program may help students qualify for job promotions and greater responsibilities in the workplace.