Literary agents help unpublished authors get published. Literary agents help already-published authors get their next book published and help them secure new publishing deals. Literary agents represent writers. Some literary agents mostly represent non-fiction writers and some mostly represent fiction writers. Some literary agents specialize in representing a certain genre of authors. For example, some literary agents mostly represent romance writers. Literary agents shop unpublished manuscripts to publishing houses. Once a publisher shows interest in a manuscript, the agent will help secure a book deal and help negotiate the terms of that deal. Some agents work for agencies that employ many literary agents and some work by themselves.
If you are looking for literary agents or an agent who represents writers, search under Literary Agents in Stamford using the MagicYellow.com directory.