If the buzz around bitcoin has peaked your interest, you certainly aren't alone.
Cryptocurrencies like bitcoin, ethereum and litecoin have all raised eyebrows with big gains in recent months — including a dramatic spike in December when bitcoin briefly topped $19,000 trading on the Coinbase exchange — and big drops like an 11 percent slump in bitcoin after the South Korean government announced plans for new regulation. Thursday morning, bitcoin was near $14,000 on the Coinbase exchange.
Before you seriously consider storing wealth in a digital currency, investing expert and "Shark Tank" star Kevin O'Leary has words of caution: do some research.
"You should never invest in something you don't understand," O'Leary tells CNBC Make It.
To study up on where bitcoin and other cryptocurrencies came from, what they do and how they work, here are six books to get you started.