I have a channel entry and I can return the {author_id} but what I would like to do is return more fields from author
{title}
{business_name}
What is the best way to achieve this?
You can use
{exp:member:custom_profile_data member_id="{author_id}"}
<p>{username}</p>
{/exp:member:custom_profile_data}
Change the username tag in any member_field you like,
List with the variables to use: ee user-guide
or you can also use your own custom tags