columnist Mona Bushnell has published a free guide to marketing certifications. Bushnell has covered the details of certifications from accredited universities, certifications for specific digital marketing skills and more. Bushnell says, “There are hundreds, if not thousands, of certifications for marketing professionals. We compiled this guide of reputable marketing certifications to make it easier for you to boost your skills and advance your career. Certifications from accredited universities Marketing certifications are in high demand, and many accredited universities and... [...]