for long term understanding, it's just like any other skill/trade/art: keep researching, learning, searching, finding inspiration, figuring out what you don't know, so you know what you want to learn next, and if it's worth learning.
you can "start hacking" by mimicking (copying) certain styles, seeing how they work, analyzing their advantages and disadvantages in different situations (just like different programming languages)... etc.
I think you're already way ahead of the crowd just by knowing how important typography is to the successful design of site, best of luck.
for long term understanding, it's just like any other skill/trade/art: keep researching, learning, searching, finding inspiration, figuring out what you don't know, so you know what you want to learn next, and if it's worth learning.
you can "start hacking" by mimicking (copying) certain styles, seeing how they work, analyzing their advantages and disadvantages in different situations (just like different programming languages)... etc.
I think you're already way ahead of the crowd just by knowing how important typography is to the successful design of site, best of luck.