If you're really new to Go, but familiar with other programming languages, I would recommend starting with the tour (https://go.dev/tour/welcome/1) - I think it explains some of the differences between Go and other languages pretty well and gets you up to speed on the basics fast, without having to install anything. Once you have done that, you can continue with the "official" documentation listed on https://go.dev/doc/ which includes "Effective Go" (some useful recommendations) and the FAQ.