I recently have been learning about PPC ads. I came across this book that helps with anyone wet behind the ears with it lol. It's called Pay Per Click Search Engine Marketing for Dummies. You can find it on Amazon or Ibooks. I think it's like 12 bucks on Ibooks. It really explains it in a real way and can help determine if you want it apart of your marketing strategy. I'm not affiliated with this book or anything. It's just super helpful. Good Luck!