Crypto Currencies

The new Book by bestselling author and blockchain expert Dr. Julian Hosp

Crypto Currencies

The new Book by bestselling author and blockchain expert Dr. Julian Hosp

Table of contents

Get an overview about the books content

  • What is money?
  • What is a currency?
  • Gold as money?
  • What is trust?
  • What are IOUs?
  • What is fiat money?
  • What are the roles in a monetary system?
  • What is centralization?
  • What is decentralization?
  • What is the main challenge with digital money?
  • Money as a method of control?
  • What is the double-spend-problem?
  • What is a blockchain?
  • How is a blockchain used for a digital currency?
  • What is a cryptocurrency?
  • Blockchain and Cryptocurrency nomenclature?
  • What was the first decentralized currency?
  • How does decentralized account management work?
  • What is a private key and public address?
  • What is open source?
  • Why do we need private keys and public addresses?
  • What is mining?
  • What are users, nodes and miners?
  • What is consensus?
  • What is a consensus algorithm?
  • What is Proof of Importance?
  • What is Proof of Stake?
  • What is Proof of Work?
  • How does a transaction get confirmed?
  • How do you find blocks?
  • How are blocks connected to a blockchain?
  • What are orphan blocks?
  • What is a hashrate?
  • What are some different types of miners?
  • What is mining difficulty?
  • Is mining profitable?
  • Are there economic mining solutions?
  • What is a SPV (Simple Payment Verification)?
  • What is the scaling debate?
  • What is SegWit?
  • What are potential scaling solutions?
  • How to explain a blockchain transaction to a 10-year-old?
  • What does a blockchain look like in reality?
  • How does halving work in mining?
  • What does “pre-mined” mean?
  • What is a deflationary cryptocurrency?
  • Do all cryptocurrencies have a capped supply?
  • Is a deflationary currency problematic?
  • What is a wallet?
  • What is in a wallet?
  • What are different wallet types?
  • What is a paper-wallet?
  • How to create a paper-wallet?
  • What is a mind-wallet?
  • What are offline-wallets?
  • What are online-wallets?
  • What is a soft-wallet?
  • What are hard-wallets?
  • What is cold-storage?
  • What is hot storage?
  • What if you lose your wallet?
  • What if you do not control your key?
  • What are deterministic wallets?
  • Why does your address keep changing?
  • What is a seed?
  • Can a blockchain be hacked?
  • What is a fork?
  • What is a soft-fork?
  • What is a hard-fork?
  • What happens to your coins during a hard-fork?
  • Why doesn’t every fork give people new coins?
  • Why can’t everyone just fork a blockchain?
  • What are replay attacks?
  • What should you be doing during a fork?
  • What are blockchain attacks?
  • Why would miners withhold blocks?
  • What is a 51% attack?
  • What is a sybil attack?
  • Quantum computing
  • Regulation
  • Internet shutdown
  • Blockchain size
  • Centralization
  • What is privacy?
  • What is anonymity?
  • What is KYC, KYB, AML and CTF?
  • What is transparency?
  • What is pseudo anonymous?
  • Are cryptocurrencies handy for illegal activities?
  • What is intimacy and secrecy?
  • What are altcoins?
  • How to recognize scams?
  • What are legitimate resources for information?
  • Which cryptocurrencies are worth looking into?
  • Bitcoin BTC
  • Who is Satoshi Nakamoto and how much BTC does he own?
  • Any Bitcoin price prediction?
  • What are forks of Bitcoin?
  • Namecoin NMC
  • Litecoin LTC
  • Bitcoin-Cash BCH
  • Ethereum ETH
  • What are smart contracts?
  • What is the EVM (Ethereum Virtual Machine)?
  • Any price prediction on Ethereum?
  • How did Ethereum Classic ETC get created?
  • What are ERC20 tokens?
  • What is an ICO?
  • ERC20 token overview: PAY, REP, ICN, MLN, DGD
  • Other decentralized blockchain platforms: Stratis, Waves
  • Application- / Asset-backed coins
  • What is tokenization?
  • What are private coins?
  • What are tainted coins?
  • Ring signatures: Monero XMR
  • Mixers: Dash
  • Zero-knowledge proofs: ZCash
  • Is this privacy good or bad?
  • Banking coins: Ripple
  • Non-blockchain solutions: Tangle (IOTA) & Hashgraph
  • Blockchain connectors: Lightning, Raiden, Interledger
  • Payment Channels
  • Atomic Swaps
  • HTLCs (Hashed Time Lock Contracts)
  • Should you invest into cryptocurrencies?
  • Are cryptocurrencies in a bubble?
  • What is the risk / reward of cryptocurrencies?
  • How much should you invest into crypto?
  • When is the best time to invest?
  • What is the best crypto investing strategy?
  • What does HODL mean?
  • How to measure profits properly?
  • Which cryptocurrencies to pick?
  • Winter is coming!
  • How to get cryptocurrencies?
  • What is OTC (Over the Counter)?
  • What is an exchange?
  • What happened with MtGox?
  • Where to keep your cryptocurrencies?
  • When should you sell a cryptocurrency?
  • How are cryptocurrencies taxed?
  • How to spend cryptocurrencies?
  • What will payments look like in 5-7 years?
  • What is price discovery?
  • What will payments look like in 10 years?
  • What will payments look like in 15-20 years?

What to expect

Take a look at what you can expect from my new book

Have you ever asked yourself what a cryptocurrency, a blockchain or Bitcoin is? How about the word “decentralization?” You might have heard that “these things are coming” and “will take over the world.” No matter if you have or haven’t, “they” are right— these things are coming. And “these things” will play just as important a role as the internet has for the past 20 years.

You know who “won” with the internet? The people who started preparing for it at the beginning, using it personally or for their business before others did. Maybe you were one of those early adopters or maybe you missed the first wave, but you know of people who caught it and are now ahead of the curve, either because they made a lot of money through investing or by making some smart business decisions in that regard. With this new technology called blockchain, a similar window of opportunity has started to open.

If you have no clue what a blockchain, a cryptocurrency, or Bitcoin is, don’t worry—most of the population doesn’t. If you do however, would you know how to explain these things in less than a minute to a 10-year-old? Chances are that your answer is “no.” I know this, because I give close to a hundred talks a year all around the world on this topic. “No” is most always the answer, no matter whether it is in Europe, Asia, America, or Africa. Even when I enter a room full of blockchain developers and I ask who could explain a blockchain, but then add “in under a minute and to a 10-year-old,” almost no one raises their hand. Looking at these facts, one starts to wonder how the general public should ever understand these breakthrough concepts so they hit the mass market.

One of the main challenges for anyone trying to get familiar with the topics around blockchain, decentralization, Bitcoin, and other cryptocurrencies is the question of “where to start?” This is exactly what prompted me to write this book. In the simplest way possible, I will explain all the aforementioned points, so even a 10-year-old could understand them. At the same time, I will reference the actual details on a technical level to give you both the large scale and the detailed picture. Explaining something to a 10-year-old is in no way a commentary on anyone’s intelligence. I’m just following Albert Einstein’s advice:

“If you can’t explain it simply, you don’t understand it well enough.”

Maybe you can recollect the times you had to explain something to a child (maybe your own). You could not use the same terms and words you would normally use. Initially this was difficult, but once you figured it out, you gained a totally new understanding yourself. Can you remember an instance like that? Following this principle, I want to explain these new tech terms around blockchain in a language that truly anyone can understand—even a 10-year-old. This will not only help you understand everything better, but furthermore, it will allow you to explain these things to other people, if you want to. The ultimate goal is to make people all around the world #CRYPTOFIT. I.E fit for this new wave of decentralization and blockchain. Are you open to joining the ride with this single point of entry?


10 things you will definitely learn in this book:

1. What does “covered by gold” actually mean?
2. Will fiat currencies be replaced by cryptocurrencies?
3. Can a total Internet crash destroy cryptocurrencies?
4. Are cryptocurrencies actually created by “mining”? (Note: no)
5. Is a limit of maximum bitcoins better than Fiat?
6. How do I get a cryptocurrency account if there is no central office or contact?
7. Are cryptocurrencies better than fiat currencies?
8. Is Blockchain the only solution for decentralization?
9. Which technology will prevail in the end? (Note: not the “best”!)
10. Can I “lose” my cryptocurrencies? (Note: No, that is not possible)

“If you only ever want to read one book to understand this complex topic, get this one”

Dennis Jacobs

Business Angel

“I got all information I needed to start investing in crypto currencies. This is an extraordinary book by an extraordinary author. “

Wellington Estevo


Do you want a free BONUS chapter?

Order now and get a free bonus chapter about ICO’s


  • What is an ICO?
  • How is an ICO different to an IPO?
  • What is a token sale / token generation event?
  • Why do companies do an ICO?
  • What makes an ICO successful?
  • Should you invest in ICOs?
  • Where can you find more info on ICOs?