The Guitar Scales Quick Start Guide is a great primer to learn the basics about guitar scales.
If you're looking for the cheat sheet showing all the scale patterns you need for the key of G, you'll find it on page 12 of the Guide. I'd recommend printing that page (or the whole guide) for easy reference.
I hope the Guide is useful to you, and serves as the first stepping stone to opening your eyes to how the fretboard works. There's much more to be discovered, and when you're ready to take that next step, I invite you to checkout my Guitar Scale Patterns course.
If you have questions about anything in the Guide, please use the comments section below and I'll do my best to answer.
Right click on the button below, and select Save As, or your browser's equivalent. If you left click on the button, it will load the guide in the current window.