Nationally syndicated radio host Kim Komando has released a new book called Cryptocurrency 101. The eBook edition currently sits atop the Amazon best-sellers list.

The book is described as a beginner's guide to buying, selling, and spending digital currency the safe way.

According to Investopedia, cryptocurrency is a digital or virtual currency that is secured by cryptography, which makes it nearly impossible to counterfeit or double-spend.

Komando is a radio host about consumer technology. She hosts a weekly call-in show which provides advice about technology gadgets, websites, smartphone apps, and internet security.

"Crypto is everywhere, and I don't want you investing a bunch of your hard-earned money without the right know-how," Komando said on her website. "That's why I put together a new eBook to help you get the basics down."