Ideally, most people would prefer to be able to take lessons in the style of music that they enjoy the most, and that is one of the things you will get with Guitar Tricks. This will enable you to learn just about every level of guitar skill and technique for any type of music. According to a vast number of past and current students who have experienced this type of training, “…it is the best way to learn!”
Some young players get the idea that you have to first master basic chords and scales before you can move on to playing songs you know by bands you love. Not so. Of course if you are into classical music, progressive metal or jazz that may be true, but you might be surprised to know that much of the rock and country music you hear is based around very simple chord progressions.
Here you'll find the JustinGuitar range of books. Method Books include The Beginner's Course and the Intermediate Method. Songbooks include the Beginner Songbook (our biggest seller, over 100,000 copies sold), Volume 2 (an equal, not a sequel!) and a selection of Intermediate Level Songbooks in various styles: Acoustic, Rock, Pop and Vintage (hits from the 60's-80's). These start with "Beginner Plus" which are great for Beginner's consolidating their knowledge and then move onto songs using barre chords and more complex techniques for Intermediate players. There's also a Beginner Ukulele Songbook! I just have one Transcription Book at the moment, the Blues Lead Guitar Solos Book, but more are in the works. Due to the popularity of my site in Germany, we have two titles translated into German!
This course aims to get you ready to play the guitar as soon as possible, so we only cover the absolute essentials. Learn how to maintain your guitar and gain the basics to play both lead and rhythm guitar. This is great for those who have played some guitar in the past but want to brush up the basics. For complete beginners, try our Introduction to Guitar Playing course.
I have heard how giving you are in so many respects of music schooling and I must say that I am impressed. You remind me of the pure idealism that we had in starting Apple. If I were young, with time, I'd likely offer to join and help you in your endeavours. Keep making people happy, not just in their own learning, but in the example you set for them. 
4.) Check the guitar’s string height by pressing down on the first, second, and third fret. You should be able to do so with minimal effort. Come to the 12th fret and press down. The distance from the top of fret to the bottom of the string should be no more than three times. If it is five times, the guitar may have a warped neck or too high of a bridge.