![blockchain-3.png](https://steemitimages.com/DQmeNnjzeJWTnxVmwR2Lk6bN1aUCQiMLqGT2knSoWLkbx2n/blockchain-3.png)
***
This is the twenty-third day of my 30 days challenge dedicated to crypto resources. Each day I will post a relevant resource (used by me, or recommended) and at the end of each post you'll see a list of all the previous articles. 

Today I'm sharing a super short class I created on Skillshare, called Blockchain 101. It's a course geared towards total beginners, containing only 14 minutes, in which I'm trying to cover just the basics. There are 4 bite-sized lessons, as follows:

* What Is A Blockchain?
* What Is Cryptography?
* Why Are Blockchains So Special?
* What Are Bitcoin, Ethereum and Steem?

Currently, I'm running a promotion in which I'm giving away free access to 20 people. So, by clicking the link below you'll be able to watch the course for free, without getting a premium (paid) Skillshare membership (and the minutes you're watching won't count towards my monthly paid minutes quota). 

## [Blockchain 101 On Skillshare](http://skl.sh/2zvDqcR)

Please be aware there are only 20 spots left (some of them already taken after the previous post about the promotion) so in case you're getting a "link expired" message, it means all the spots have been taken.

But if you do get access, I'd really appreciate some feedback, either here or on Skillshare site as well.

Thank you!
***
# Previous Resources
* [Crypto Enthusiasts Resources, Ep. 22: LocalBitcoin, Buy Bitcoin In Person, From Real People, Without An Exchange](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-22-localbitcoin-buy-bitcoin-in-person-from-real-people-without-an-exchange)
* [Crypto Enthusiasts Resources, Ep. 21: Token Data, How Much Is Any ICO Worth?](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-21-token-data-how-much-is-any-ico-worth)
* [Crypto Enthusiasts Resources, Ep. 20: Steem Powered Websites](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-20-steem-powered-websites)
* [Crypto Enthusiasts Resources, Ep. 19: earn.com - Earn Bitcoin By Reading Email (And Not Only By That)](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-19-earn-com-earn-bitcoin-by-reading-email-and-not-only-by-that)
* [Crypto Enthusiasts Resources, Ep. 18: 99Bitcoins.com - Crypto Translated In Plain English](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-18-99bitcoins-com-crypto-translated-in-plain-english)
* [Crypto Enthusiasts Resources, Ep. 17: Make Your Own Portfolio Tracker With Google Sheets (Template Included)](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-17-make-your-own-portfolio-tracker-with-google-sheets-template-included)
* [Crypto Enthusiasts Resources, Ep. 16: The Age of Cryptocurrency (Yes, An Actual Book!)](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-16-the-age-of-cryptocurrency-yes-an-actual-book)
* [Crypto Enthusiasts Resources, Ep. 15: WhatToMine.com - Mining Calculator](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-15-whattomine-com-mining-calculator)
* [Crypto Enthusiasts Resources, Ep. 14: Utopian.io - Get Rewarded For Open Source Contributions](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-14-utopian-io-get-rewarded-for-open-source-contributions)
* [Crypto Enthusiasts Resources, Ep. 13: CryptoGrind.com - Freelance For Bitcoin](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-13-cryptogrind-com-freelance-for-bitcoin)
* [Crypto Enthusiasts Resources, Ep. 12: Andreas Antonopoulos YouTube Channel](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-12-andreas-antonopoulos-youtube-channel)
* [Crypto Enthusiasts Resources, Ep. 11: CoinsCalendar.com](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-11-coinscalendar-com)
* [Crypto Enthusiasts Resources, Ep. 10: BlockchainDemo.io](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-10-blockchaindemo-io)
* [Crypto Enthusiasts Resources, Ep. 9: Prepaid Bitcoin Visa Cards: Bitwala](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-9-prepaid-bitcoin-visa-cards-bitwala)
* [Crypto Enthusiasts Resources, Ep. 8: BlockchainDevJobs.com](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-8-blockchaindevjobs-com)
* [Crypto Enthusiasts Resources, Ep. 7: Jaxx Wallet](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-7-jaxx-wallet)
* [Crypto Enthusiasts Resources, Ep. 6: /r/Jobs4Bitcoins](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-6-r-jobs4bitcoins)
* [Crypto Enthusiasts Resources, Ep. 5: Icotracker.Net](https://steemit.com/blockchain/@dragosroua/crypto-enthusiasts-resources-ep-5-icotracker-net)
* [Crypto Enthusiasts Resources, Ep. 4: Coinbuzz.Stream](https://steemit.com/cryptocurrency/@dragosroua/crypto-enthusiasts-resources-ep-3-coinbuzz-stream)
* [Crypto Enthusiasts Resources, Ep. 3: Bitcoin Magazine](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-3-bitcoin-magazine)
* [Crypto Enthusiasts Resources, Ep. 2: BitcoinTalk Forum](https://steemit.com/bitcoin/@dragosroua/crypto-enthusiasts-resources-ep-2-bitcointalk-forum)
* [Crypto Enthusiasts Resources, Ep. 1: Altcoins Ups And Downs](https://steemit.com/steemit/@dragosroua/crypto-enthusiasts-resources-ep-1-altcoins-ups-and-downs)
***
_I'm a serial entrepreneur, blogger and ultrarunner. You can find me mainly on my blog at [Dragos Roua](http://dragosroua.com) where I write about productivity, business, relationships and running. Here on Steemit you may stay updated by following me @dragosroua._
<center>
![Dragos Roua](http://dragosroua.com/wp-content/uploads/2014/05/bamf-e1448824881306.png)</center>
***
<center>_You can also vote for me as witness here:
https://steemit.com/~witnesses_</center>
***
_If you're new to Steemit, you may find these articles relevant (that's also part of my witness activity to support new members of the platform)_:
* [Rewards: Were Does The Money Come From?](https://steemit.com/steemit/@dragosroua/steemit-newbie-faq-rewards-were-does-the-money-come-from)
* [Netiquette: How To Avoid Being A Steem Douche?](https://steemit.com/steem/@dragosroua/steemit-newbie-faq-netiquette-how-to-avoid-being-a-steem-douche)
* [Witnesses: What Are They And Why Should You Care?](https://steemit.com/steemit/@dragosroua/steemit-newbie-faq-witnesses-what-are-they-and-why-should-you-care)
* [How Can I Mine Steem And What CPU / GPU Power Do I Need For That?](https://steemit.com/steemit/@dragosroua/steemit-newbie-faq-how-can-i-mine-steem-and-what-cpu-gpu-power-do-i-need-for-that)
* [The Beginner Guide To Not Getting Hacked On Steemit](https://steemit.com/steemit/@dragosroua/the-beginner-guide-to-not-getting-hacked-on-steemit)