There are many ways to land an agent. One way is to submit a query letter. A query letter tells the agent about your book and yourself. Query letters should be one page in length. The other way is pitching. I recently won a pitching event at the Montclair Literary Festival. This pitching event, Pitchapalooza has helped many writers sign with agents and publishers, turning them from aspiring writers to published writers.
We were only given one minute for our pitch. The pitch introduces your story’s protagonist and what makes your book unique. I think it’s always a good idea to start with comparisons to allow agents and publishers the chance to “picture” your book.
For example the pitch for Hunger Games . YA Gladiator meets Running Man. Two children to each of Panem’s 12 districts are chosen to fight to the death in gladiator games. When Katniss’s younger sister is chosen she decides to take her place.