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.

MathWorks
Skills you'll gain: Control Systems, Machine Controls, Three-Phase, Power Electronics, Simulation and Simulation Software, Model Based Systems Engineering, Electrical Engineering, Automation Engineering, Simulations, Mathematical Modeling, Electrical Power, Performance Tuning, Performance Testing, System Configuration
Beginner · Course · 1 - 4 Weeks

University of Cambridge
Skills you'll gain: Intellectual Property, Law, Regulation, and Compliance, Medical Privacy, Biotechnology, Regulation and Legal Compliance, Life Sciences, Health Care Procedure and Regulation, Healthcare Ethics, Health Disparities, Emerging Technologies
★ 5 (6) · Beginner · Course · 1 - 3 Months

University of London
Skills you'll gain: Environmental Policy, Climate Change Programs, International Relations, Climate Change Mitigation, Energy and Utilities, Environmental Issue, Petroleum Industry, Oil and Gas, Governance, Diplomacy, Public Policies, Policy Development, Climate Change Adaptation, Sustainable Development, Policy Analysis, Economics, Security Strategy, Electric Power Systems, Sustainable Technologies
★ 4.7 (730) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Operating Systems, Cybersecurity, Computer Architecture, Cloud Computing
★ 4.8 (2K) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Magnetic Resonance Imaging, Neurology, Medical Imaging, Diagnostic Radiology, Anatomy, Image Analysis, Data Analysis, Correlation Analysis, Data Manipulation, R (Software), Radiology, Experimentation, Research Design, Laboratory Research, Statistical Analysis, Image Quality, Advanced Analytics, R Programming, Statistical Methods, Statistics
★ 4.7 (3.3K) · Intermediate · Specialization · 3 - 6 Months

Stanford University
Skills you'll gain: Social Network Analysis, Network Analysis, Social Sciences, Sociology, Socioeconomics, Game Theory, Behavioral Economics, Mathematical Modeling, Statistical Modeling, Bayesian Statistics, Probability
★ 4.8 (759) · Advanced · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: AI Security, Vulnerability Assessments, Governance Risk Management and Compliance, Responsible AI, Compliance Auditing, Personally Identifiable Information, Regulatory Compliance, Regulatory Requirements, Compliance Management, Law, Regulation, and Compliance, Regulatory Documents, AI Integrations, Compliance Reporting, Safety Audits, Threat Modeling, Legal Risk, Safety Assurance, Risk Management Framework, Data Loss Prevention, Risk Mitigation
Intermediate · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Energy and Utilities, Environmental Science, Environment, Environment and Resource Management, Oil and Gas, Petroleum Industry, Electric Power Systems, Sustainable Systems, Climate Change Adaptation, Sustainable Development, Sustainable Technologies, Plant Operations and Management, Sustainable Architecture, Climate Change Mitigation, Physics
★ 4.8 (105) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Electrical Power, Electric Power Systems, Energy and Utilities, Electrical Systems, Basic Electrical Systems, Market Dynamics, Operating Cost, Plant Operations and Management, Environmental Regulations, Regulatory Compliance, Regulatory Requirements, Dispatching
★ 4.8 (1.6K) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Spatial Data Analysis, Environmental Issue, Geospatial Information and Technology, Environment and Resource Management, Environmental Science, Geographic Information Systems, Oil and Gas, Environmental Resource Management, Natural Resource Management, Sustainable Systems, Petroleum Industry, Physical Science, Environment, Vibrations, Laboratory Experience, Materials science, Hazard Analysis
★ 4.9 (539) · Beginner · Course · 1 - 3 Months

Saïd Business School, University of Oxford
Skills you'll gain: AI powered creativity, Generative AI, Generative Model Architectures, AI Product Strategy, Media Production, Content Creation, AI literacy, Creativity, Responsible AI, AI Integrations, Media Strategy, AI Workflows, Media and Communications, Content Strategy, Content Optimization, Content Management, Compliance Management, Marketing Communications, Digital Transformation, Marketing
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Deductive Reasoning, Critical Thinking, Logical Reasoning, Computational Logic, Analysis, Probability, Diagram Design, Sampling (Statistics), Persuasive Communication, Verification And Validation, Probability & Statistics, Statistical Inference, Correlation Analysis, Communication, Decision Intelligence, Appeals, Business Communication
★ 4.6 (3.7K) · Beginner · Specialization · 3 - 6 Months