They may include:

• correcting spelling mistakes and grammatical errors;
• publishing of weekly magazine on time and as per schedule 
• Booking of commerical ads 
• Desiging of weekly magazine before priniting and distribution day
• working with IT-based publishing systems and databases, as well as via the internet or from paper manuscripts;
• resolving queries directly with the team, e.g. style and text inconsistencies;
• coding manuscripts for design features, such as hierarchy of headings, to instruct the production team;
• creating artwork briefs to detail the content of illustrations;
• ensuring that illustrations are correctly captioned and referred to in the text;
• producing or working to a style checklist to ensure consistency in hyphenation, capitalisation, formatting of references, etc;
• maintaining awareness of new words or phrases coming into popular usage with a view to ensuring they're appropriate for the readership;
• retrieving articles from archives and rearranging within publications;
• preparing preliminary pages for the title, contents and preface of a publication;
• overseeing the work of indexers, typesetters and designers;
• (increasingly for freelancers) typesetting and designing layout;
• ensuring that publications are prepared on budget and to schedule;
• Managing marketing and business activities.