The Screenwriter's Bible: A Complete Guide to Writing, Formatting, and Selling Your Script

The Bible is five books bound into a single volume.
-- a screenwriting primer (provides a concise presentation of screenwriting basics)
-- a formatting guide (presents both correct screenplay and teleplay formats)
-- a screenwriting workbook (the writing process, from nascent ideas to revisions)
-- a sales and marketing guide (offers a marketing plan and sales strategies)
-- a resource guide (provides contacts for industry organizations, guilds and unions, schools, publications, support groups and services, contests, etc.)