Ideally the best way to familiarize yourself with a product is to install it in a lab environment. Unfortunately the amount of equipment required to setup a proper NSX Home Lab may be cost prohibitive for some. Furthermore the investment in time to get everything setup and configured may take too long. An easy way to inch into it is by taking advantage of the NSX labs that are now available in the HOL Online Portal. I would suggest starting with HOL-SDC-1303 – VMware NSX Network Virtualization Platform.