SEO is a big topic to tackle, especially if you're a beginner.
If you want to read up on SEO and gain some knowledge, there are tons of resources out there! In fact, Exposure Ninja put out a list of free options for you to use.
They say to check out Google's SEO starter guide first. "What better place to start than Google’s very own starter guide to SEO? While search engines and SEOs tend to have different goals in mind, there’s no doubt that it’s worth listening to what Google has to say about making websites rank."
You can also learn a lot from Moz, Search Engine Journal, Search Engine Land, and our blog right here!