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.

Skills you'll gain: Music Theory, Musical Composition, Music, Instrumental Music, Music Performance, Creativity
★ 4.7 (392) · Intermediate · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Climate Change Adaptation, Research Methodologies, Research, Surveys, Qualitative Research, Social Impact, Environmental Policy, Social Justice, Data Collection, Environmental Monitoring, Vulnerability, Environmental Science, Natural Resource Management, Policy Analysis, Governance, Fundraising
★ 4.5 (56) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: MLOps (Machine Learning Operations), Model Deployment, LLM Application, Application Deployment, Model Training, Cloud Deployment, Continuous Deployment, AI Workflows, AI Security, Data Ethics, Responsible AI, Prompt Engineering, Retrieval-Augmented Generation, Scalability, CI/CD, Site Reliability Engineering, Model Evaluation, Release Management, System Monitoring, Containerization
Intermediate · Course · 1 - 4 Weeks
Rice University
Skills you'll gain: Statistical Hypothesis Testing, Microsoft Excel, Statistical Methods, Pivot Tables And Charts, Regression Analysis, Data Literacy, Statistics, Descriptive Statistics, Probability & Statistics, Graphing, Spreadsheet Software, Probability Distribution, Business Analytics, Statistical Modeling, Statistical Analysis, Statistical Inference, Excel Formulas, Data Analysis, Presentations, Sample Size Determination
★ 4.7 (13K) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Color Theory, Graphic Design, Color Matching, Typography, Graphic and Visual Design, User Experience Design, Graphic and Visual Design Software, Design, Digital Design, Creative Design, Design Elements And Principles, Visual Design, Design Software, Web Design and Development, Image Quality
★ 4.7 (272) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Sustainable Development, Sustainable Systems, Socioeconomics, Community Development, Sustainable Business, Social Impact, Governance, Systems Thinking, Multimedia, Case Studies, Resource Utilization, Innovation, Stakeholder Engagement, Analysis, Consumer Behaviour
★ 4.7 (185) · Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Psychology, Human Learning, Learning Theory, Education and Training, Training Programs, Anthropology, Experimentation, Research, Science and Research, Scientific Methods, Non-Verbal Communication, Biology
★ 4.7 (4.7K) · Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Teaching, Social Justice, Emotional Intelligence, Social Skills, Empathy, Self-Awareness, Higher Education, Behavior Management, Classroom Management, Cultural Responsiveness, Curriculum Planning, School Psychology, Empowerment, Personal Development, Childhood Education and Development, Program Evaluation, Advocacy, Professional Development, Growth Mindedness, Mindfulness
★ 4.7 (973) · Beginner · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: FinTech, Financial Regulation, Financial Services, Payment Systems, Financial Regulations, Commercial Lending, Financial Industry Regulatory Authorities, Bank Regulations, Lending and Underwriting, Banking, Banking Services, Consumer Lending, Regulatory Compliance, Blockchain, Law, Regulation, and Compliance, Legal Risk, Payment Processing, Financial Data, Digital Assets, Regulatory Requirements
★ 4.8 (907) · Beginner · Course · 1 - 3 Months

Multiple educators
Skills you'll gain: Incident Response, Email Security, Digital Forensics, Network Security, Computer Security Incident Management, Cloud Computing Architecture, Incident Management, Business Continuity Planning, Penetration Testing, Cloud Services, Business Continuity, Security Controls, System Configuration, Generative AI, Data Storage, Peripheral Devices, Cybersecurity, Application Security, Information Technology, Cryptography
★ 4.7 (15K) · Beginner · Professional Certificate · 3 - 6 Months

Duke University
Skills you'll gain: Social Studies, Social Sciences, Socioeconomics, Anthropology, International Relations, World History, Sociology, Social Justice, Cultural Diversity, Social Impact, Economics, Political Sciences
★ 4.8 (1.4K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Power Electronics, Thermal Management, Electrical Safety, Electrical Power, Building Codes, Electric Power Systems, Electronic Systems, Electrical Equipment, Electrical Systems, Embedded Software, Electronic Components, Energy and Utilities, Basic Electrical Systems, Sustainable Technologies, Automation, Environmental Issue, Environment and Resource Management, Environmental Regulations, Environmental Engineering and Restoration, Geospatial Information and Technology
★ 4.2 (285) · Intermediate · Specialization · 1 - 3 Months