Hello everyone. I've made a few posts here, although I'm mainly a lurker. I've been feeling completely out of it for about a year now.. I've been playing guitar, but rarely did I feel up to learning anything new. I've not progressed much in my opinion. I bought a new guitar, which helped a little, but I've still been in the same slump. Not just in guitar, but in life.. But that's aside from the point. Today I really cleaned my room, and I came across an old poster that my cousin gave me when I first started playing.. It was from an older guitar world magazine, and it says something like BULLSHIT FREE ZONE ESSENTIAL SCALES AND CHORDS. I knew the basic chords, but it had some other ones (that weren't overbearing, and that I've used but didn't know the names of before), and a few scales, which I only knew one of. It actually made me want to sit down and practice them and learn them, unlike the big chord poster I have on my wall that has probably over a hundred chords on it. So my question is what chords, scales, sweeps, etc. are essential? I know that there are plenty of resources on this forum alone that list all of them, and that's not what I'm asking for. I want to know which ones I should learn.. At least on a basic level, and then what I should build to.. Also, shouldn't I be able to just learn (excluding open chords) one chord/scale/sweep and move up and down the guitar neck the according number of steps to get to the right note? Just to cut down on what I need to actually learn to make it easier. I plan on printing out the essentials, and then more and more. It was easier to do with it not being on the computer for some reason. Also, if a book could be recommended, that would great too. If it makes any difference, the stuff that I generally play is as follows: Nevermore/Jeff Loomis, John Petrucci, Periphery/Bulb, Killswitch Engage, All That Remains, Lamb Of God. Metallica... I really play anything that sounds good to me, but those are what I generally go through. tl;dr What chords, scales, and arpeggios are essential to learn? Thanks in advance for any advice!