When I left the law to pursue freelance writing, I debated going for a masters degree in journalism. But then I took a few adult education classes and realized that for my goals, it wasn’t necessary to go back to grad school. It also didn’t make much sense to me to invest tens of thousands of dollars for a career where I’d be earning substantially less than my salary as a lawyer. I’m now a huge fan of these kinds of classes. This week, my online column for the New York Times, Shifting Careers, is about why these classes are often all you need for a dramatic career shift.