Summary and review ofCryptocurrency Investing

Reviewed by Diario de un Inversor · UpdatedJune 13, 2026

Our review

Andrea Redondo writes for the reader who has heard about Bitcoin and Ethereum but does not fully understand what they are buying when they purchase either. The book covers ground that cryptocurrency enthusiasts typically take for granted: what a blockchain is, how digital asset custody works, the difference between a hot and a cold wallet, and the primary risk vectors any retail investor should understand before trading. The approach is accessible and deliberately non-technical, which is a genuine strength when the goal is better-informed decision-making rather than developer training. The book's main limitation is its rate of obsolescence: published in 2022, some of the projects and platforms it references have changed materially or ceased to exist. In the crypto ecosystem, two years represent a geological era. That does not invalidate the foundational principles it conveys — on custody, counterparty risk, volatility, and position sizing — but it does require readers to update any specific platform or project references independently. Treat it as an honest starting point rather than a comprehensive guide.

Key takeaways

• Self-custody eliminates counterparty risk but transfers all security responsibility to the user — lost keys mean lost assets permanently.
• Crypto asset volatility is structurally different from traditional assets: drawdowns of 50-80% are not historical outliers.
• Diversifying across crypto assets does not eliminate correlation: in bear markets, most assets fall simultaneously.
• Understanding what you are buying — and why — matters more than timing the market entry.

Fact

Published in 2022, the year the crypto market lost approximately 2 trillion dollars in market capitalization during the so-called "crypto winter," making the risk management chapters especially timely.