We only list the readers that we get a ton of recommendations for the benefit of our readers (the writers themselves). We don't sell or offer any of their services. Their prices and resume are listed on the site for convenience. You would need to contact them directly to inquire their availability. But yes, you can pick whichever reader you choose. Or none, if you don't feel they would meet your needs. Also, feel free to email them directly and ask whatever questions you may have. Again, they're all individual freelance readers. Almost all of them read for studios, producers or prodco's in addition to offering their services to screenwriters.