The ultimate guide to texting and phone game by Braddock is better than everything I have read out there. Before I read it, I would make crucial mistakes like trying to go for the date too early and trying to send a "comfort" text, both of which come off as needy.
Braddock's tactics are solid and are a comprehensive guide to phone and text game. He also provides examples in the book of what a successful text convo will include.
Check it out. It's definitely worth the price. Make sure you get the bonus books too! They're a life saver!