Hello,
1) I recommend you to create your own document type Author and you can define it custom fields like FirstName, LastName, etc., then you can create a standard Page (menu item) called Biography and place a Repeater web part on it. This web part has two importent properties (Transformation, Selected item transformation), in which you can define, how the Author list will look like and how you display detail information about Author after someone click on him.
2) Also by using repeaters, but the second one will be more difficult to be made, because you would need to select latest articles, paired them woth authors and after then display them in repeater.
Please follow the links below to our documentation to learn more about custom document types and transformations:
http://devnet.kentico.com/docs/devguide/index.html?defining_a_new_document_type.htmhttp://devnet.kentico.com/docs/devguide/index.html?writing_transformations.htmBest regards,
Jan Hermann