If you’re interested in adding education credentials to your resume without paying a lot for grad school or taking the time out for a masters, you should consider enrolling in a Certificate Program or an Accelerated Program. From Lesley’s post in Student Branding:
Many colleges and universities are offering programs like these, both online and in the classroom, that can help you develop specific career competencies. They are each distinct in their offerings but either can provide you with the additional skills or knowledge that can make you more relevant or marketable in the career that you would like to pursue.
Read more here.

