An editor is responsible for ensuring the accuracy and quality of a company's written materials. ... A few of the main duties of an editor are editing copy and improving on it, educate writers on best practices, identify ways to improve the flow of materials, and advise writers on content pieces. Use the keyword but don't overuse it. Place the keyword near the front of the title. Focus on readers, not just search engines. Show benefits and value. Include your brand name when relevant. Write 50 to 60 characters. Write unique page titles for each page. Video Editors are generally responsible for editing and assembling recorded raw material into a suitable, finished product ready for broadcasting. The material may include camera footage, dialogue, sound effects, graphics and special effects.