Literary Agent Sound Off: Query Letter Basics

http://www.writersdigest.com/editor-blogs/guide-to-literary-agents/literary-agent-sound-off-query-letter-basics?et_mid=728005&rid=248939721

Queries are business letters. Agenting is business. Publishing is business. I try to be nice and friendly and funny and all, but the bottom line is that I expect those with whom I work to be professional and take what they’re doing seriously.
—Linda Epstein (Jennifer De Chiara Literary)