Cryptocurrency and blockchain courses can help you learn how distributed ledgers work, how transactions are verified, and how major blockchain networks are structured. You can build skills in wallet management, smart contract basics, and evaluating blockchain use cases. Many courses introduce tools such as crypto exchanges, block explorers, and frameworks used to experiment with decentralized applications.

Starweaver
Skills you'll gain: High Voltage, Power Electronics, Electrical Equipment, Electronic Systems, Electrical Systems, Basic Electrical Systems, Energy and Utilities, Control Systems, Test Equipment, Electric Power Systems, Wiring Diagram, Hardware Troubleshooting, Electrical Safety, Sustainable Technologies, Failure Analysis, Test Tools, Thermal Management, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Encryption, Public Key Infrastructure, Cryptography, Data Security, Cryptographic Protocols, Advanced Encryption Standard (AES), Cybersecurity, Network Security, Blockchain, Authentications, Data Integrity, Classification Algorithms
Intermediate · Course · 1 - 4 Weeks

Wesleyan University
Skills you'll gain: Storytelling, Writing, Writing and Editing, Content Creation, Creativity
Mixed · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Data Storytelling, Data Presentation, Dashboard, Microsoft Excel, Data Visualization Software, Pivot Tables And Charts, Geospatial Information and Technology, Spreadsheet Software, Geospatial Mapping, Data Analysis, Productivity Software, Microsoft Office, Microsoft 365
Mixed · Course · 1 - 4 Weeks

ISAE-SUPAERO
Skills you'll gain: Hazard Analysis, Risk Control, Vibrations, Mechanics, Engineering Analysis, Mathematical Modeling, Engineering Calculations
Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Public Speaking, Verbal Communication Skills, Non-Verbal Communication, Communication, Composure, Communication Strategies, Advocacy, Stress Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Power, Electric Power Systems, Electrical Systems, Control Systems, Electrical Substation, Electrical Equipment, Energy and Utilities, Electrical Safety, Plant Operations and Management, High Voltage, Applied Mathematics, Power Electronics, Automation Engineering, Basic Electrical Systems, Electrical Engineering, Low Voltage, Process Control, Mathematical Modeling, Matlab, Three-Phase
Intermediate · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Electrical Systems, Electrical Wiring, HVAC, Building Design, Construction Inspection, Basic Electrical Systems, Engineering Calculations, Architectural Design, System Requirements, Mechanical Design, Building Codes, Structural Analysis, Cost Estimation
Intermediate · Course · 1 - 3 Months
University of Minnesota
Skills you'll gain: Cybersecurity, Cloud Computing, IT Management, Information Technology, Technology Solutions, Technology Strategies, IT Infrastructure, Data Security, Technical Management, Information Systems, Mobile Security, Emerging Technologies, Innovation, Blockchain, Wireless Networks
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Calculus, Integral Calculus, Numerical Analysis, Advanced Mathematics, Mathematical Theory & Analysis, Data Integration, Mathematical Modeling, Data Analysis, Vector Databases, Probability, Geometry, Applied Mathematics, Mechanics, Engineering Calculations, Spatial Data Analysis, Derivatives, Physics
Intermediate · Specialization · 3 - 6 Months

University of Copenhagen
Skills you'll gain: Sustainable Development, Social Impact, Systems Thinking, Social Sciences, Environmental Science, Culture, Timelines, Environmental Policy, Ethical Standards And Conduct, Political Sciences, Economics
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Wide Area Networks, Data Centers, Virtual Machines, Network Administration, Virtualization, Network Architecture, Virtual Private Networks (VPN), Wireless Networks, Computer Networking, Network Monitoring, Network Troubleshooting, Software-Defined Networking, Intrusion Detection and Prevention, Network Security, Cloud Computing, Distributed Denial-Of-Service (DDoS) Attacks, Key Management, Internet Of Things, Disaster Recovery
Advanced · Course · 1 - 3 Months