A follow up another Q&A topic dealing with what major is best for teaching English abroad?
What Certification is best?
The topic of certifications is a vast array of choices. There are acronyms like TESOL, TESL, TEFL, CELTA, etc. that can be difficult to navigate if you’re still unfamiliar with the whole lay of the land. In short, TESOL/TESL/TEFL are generally interchangeable. They are ESL certifications that offer 50, 100, 120 hour courses.