If you would like a cheap way to master guitar from home, downloadable guitar lessons are a convenient and clear decision but for decades, Jamorama,
https://tr.im/hsVva is a front-runner in this industry, giving quality media guitar instruction that you can acquire to your computer.
Jamorama offers a good choice of instructions and is certainly a great pick for a beginning guitarist. Jamorama's video content is all in good HD quality, and their main trainer, Mark McKenzie, does a great job protecting the basics within an easy-to-understand and instinctive way.