I don't think that everyone needs to read about it ..
Because
etherum
Bitcoins
Litecoin
Bitcoins cash
Are the ones really making the news...
Everyone's own thinking May differ but it's for an individual to decide what to invest it
yes, everyone must only see the most popular coins, namely bitcoin and etherum. and there are other altcoins like doge, ripple, lite, and wave which everyone knows.