"The Author irrevocably appoints the Agency as sole representative for the Authorís Project on a per-Project-basis."

Not what I typically read on the internet, but clear--the contract only applies to one specific novel.

"This Agreement will pertain to all Projects the Author authorizes the Agency to represent."

Again seems obvious--you can mutually add other novels to the contract without a new contract.

What are the hidden meanings and implications? Is this a standard way to write a contract? Would you be expected to always submit new works to "your" agent first? Could you end up with two agents at the same time? Is this just legal talk, or are they really only interested in one project?