Focus on making connections between your background and the skills listed in the job description. It's not necessary to go through your resume step by step. Instead, choose three or four different aspects of your background and elaborate on each with two to three sentences. It usually makes the most sense to approach this question from a chronological or reverse chronological perspective (don't jump all over the place).

"My current position as an email marketer has sharpened my skill set. I've learned how to write effective CTAs and hone in on my target audience. Before that, I worked for a smaller company where I handled the email and social media marketing campaigns. My first job in the field was a real learning experience because I was mentored by the senior marketing manager, who taught me a lot about the fundamentals of email marketing strategies. That was where I learned how to write good subject lines, analyze my target audience, and effectively segment emails."

"My first position in marketing was the one that taught me the most. I was mentored by the senior marketing manager, who taught me a lot of the fundamentals of email marketing strategies. I learned how to write good subject lines, analyze my target audience, and effectively segment emails. After that, I worked for a smaller company where I handled the email and social media marketing campaigns. The company I work for now has given me a lot of opportunities to learn, and I've become really strong in writing CTAs and honing in on my target audience."