This book by the International Game Developers Association (IGDA) Game Writing Special Interest Group focuses on various aspects of working as a professional ga... » 

This book by the International Game Developers Association (IGDA) Game Writing Special Interest Group focuses on various aspects of working as a professional game writer, including how to break in to game writing, writing manuals, narrative design, writing in a team, working as a freelancer, working with new intellectual property, and more. It includes exercises and writing samples; additional writing samples are available from the book's website. «