How to buy bitcoins easily ?

Buying bitcoins can sometimes be difficult simply because the Bitcoin technology only allow a transfer that can’t be reversed (remember, it’s like electronic cash), so for a long time only a bank transfer that takes a few days was the way to buy some bitcoins. As you may know, credit cards are allowing reversing of transaction, that’s why there are only a few sites allowing credit card or Paypal purchase. But good news, buying bitcoins is becoming easier and I will list all the services, trusted and available to purchase safely.