I’ve just started learning this week and have a question…
I have this book for beginners and have been using it as a guide. But I have a problem. Today, I learned the notes on the third string, G and A. But there’s a G on the first string….How do you know which one to use when reading music?
And I was kind of looking around on the internet and found tabs. They look soooo different than just regular music sheets. Do you learn one or the other? Or both?
Any other tips would be excellent! Thanks. 
Tabs are a good way to learn how to play certain songs, but they’re not good if you actually want to learn how to play the guitar.
Tabs are basically cheat sheets, like taking a test with the answers written on the side.
Stick to the "Guitar for Dummies" to learn the instrument.