Book excerpt: The Photographer's Market Guide to Photo Submission and Portfolio Formats leads you through the Photography-submission-and-selling maze. Picture this, a guide that offers advice on submitting your work, tracking your pictures and selling your photos; business basics, such as releases, contracts, image archiving and invoicing; promotions, with tips on press releases, tearsheets, networking, phone sales and gimmicks; copyright, and the nitty-gritty details on protecting your work and knowing your rights; building a high-impact portfolio, from zippered carriers to electronic presentations and websites; and establishing clients, with advice on approaching ad agencies, publishers, corporations and galleries. Sample letters, releases, packaging and mailing guidelines, and more serve as quick references for your photo-submission needs.