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.

Johns Hopkins University
Skills you'll gain: Clinical Trials, Pharmacology, Clinical Research, Psychiatry, Psychotherapy, Research Design, Research Methodologies, Mental Health Therapies, Pharmacotherapy, Clinical Research Ethics, Healthcare Ethics, Research, Scientific Methods, Institutional Review Board (IRB), Drug Interaction, Medical Science and Research, Psychology, Informed Consent, Mental Health Diseases and Disorders, Neurology
★ 5 (32) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Electronic Medical Record System, Medical Records, Electronic Medical Record, Health Information Management and Medical Records, Health Information Management, Patient Registration, Data Entry, Health Informatics, Electronic Data Capture (EDC), Health Insurance Portability And Accountability Act (HIPAA) Compliance, Data Integrity, Health Technology, Data Validation, Data Quality, Computerized Physician Order Entry, Clinical Documentation, Practice Management Software, Record Keeping, Care Coordination, Regulatory Compliance
Intermediate · Specialization · 1 - 3 Months

Sage Publications
Skills you'll gain: B2B Sales, Sales Strategy, Consumer Behaviour, Sales, Sales Management, Business Marketing, General Sales Practices, Selling Techniques, Marketing Channel, Brand Loyalty, Sales Process, Marketing Strategies, Marketing, Customer Analysis, Sales Enablement, Specialized Sales, Cross-Channel Marketing, Marketing Effectiveness, Business-To-Consumer, Sales Support
Beginner · Course · 1 - 3 Months

Skills you'll gain: Diversity Awareness, Team Building, Industrial and Organizational Psychology, Organizational Development, Organizational Effectiveness, Organizational Leadership, People Management, Behavior Management, Team Collaboration, Workplace inclusivity, Diversity and Inclusion, Business Management, Performance Improvement, Operational Efficiency, Interpersonal Communications
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Autism Spectrum Disorders, Individualized Education Programs (IEP), Special Education, Nutrition Education, Community Health, School Psychology, Chronic Diseases, Case Studies, Nutrition and Diet, Empathy & Emotional Intelligence, Health Education, Health Promotion, School Counseling, Developmental Disabilities, Mental and Behavioral Health Specialties, Parent Communication, Care Management, Communication Disorders, Pediatric First Aid, Behavioral Health
★ 4.8 (3.5K) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Accounts Payable and Receivable, Accounts Payable, Bookkeeping, Generally Accepted Accounting Principles (GAAP), Cash Flow Forecasting, Month End Closing, Accounts Receivable, Balancing (Ledger/Billing), Financial Statements, Process Analysis, Payroll Processing, Accounting, Accounting Software, Reconciliation, General Ledger, Microsoft Excel, Internal Auditing, Variance Analysis, Data Transformation, Data Validation
★ 3.2 (33) · Beginner · Professional Certificate · 3 - 6 Months

Infosec
Skills you'll gain: Cyber Governance, Security Strategy, Security Management, Incident Management, Cyber Security Strategy, Business Continuity Planning, IT Security Architecture, Computer Security Incident Management, Business Continuity, Disaster Recovery, Cyber Security Policies, Cybersecurity, Incident Response, Data Governance, Governance, Contingency Planning, Security Controls, Asset Management, Cyber Security Assessment, Risk Analysis
★ 4.6 (55) · Mixed · Course · 3 - 6 Months
University of Colorado Boulder
Skills you'll gain: Microarchitecture, Hardware Design, Electronic Hardware, Electrical and Computer Engineering, Computer Architecture, Embedded Systems, Hardware Architecture, Electronic Systems, Electronics, Performance Tuning, Peripheral Devices, Memory Management, System Configuration, Value Engineering, Digital Design
Intermediate · Course · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Physics, Emerging Technologies, Physical Science, Computational Thinking, Image Analysis, Engineering, Scientific, and Technical Instruments, electromagnetics, General Science and Research, Scientific Methods
★ 4.7 (1.2K) · Beginner · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Image Analysis, Computer Vision, Classification Algorithms, Algorithms, Machine Learning Methods
★ 4.8 (55) · Beginner · Course · 1 - 3 Months

Università di Napoli Federico II
Skills you'll gain: Machine Controls, Simulation and Simulation Software, Model Based Systems Engineering, Mechanical Engineering, Control Systems, Computer Vision, Laboratory Experience, Simulations, Image Analysis, Robotics, Experimentation, Matlab, Electronic Systems, Vibrations, Hydraulics, Mathematical Modeling, Engineering Analysis, Automation, Model Evaluation, Data Validation
★ 4.5 (29) · Intermediate · Course · 1 - 4 Weeks
University of Alberta
Skills you'll gain: Requirements Analysis, Requirements Elicitation, Functional Requirement, Backlogs, User Requirements Documents, Change Control, User Story, System Requirements, Acceptance Testing, Agile Methodology, Agile Software Development
★ 4.8 (3.2K) · Mixed · Course · 1 - 4 Weeks