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: Large Language Modeling, Artificial Intelligence and Machine Learning (AI/ML), MLOps (Machine Learning Operations), Artificial Intelligence, Cloud Management, Generative AI, AI Orchestration, Cloud Deployment, Infrastructure Architecture, Cloud Infrastructure, Cloud Computing, AI Workflows, Devops Tools, Data Infrastructure, AI literacy, Deep Learning, Information Technology Operations, Machine Learning, Network Infrastructure, Data Centers
★ 4.6 (506) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: HTML and CSS, Web Design and Development, Front-End Web Development, Responsive Web Design, Web Applications, Web Design, Ajax, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Development, Web Development Tools, Development Environment, Javascript, Frontend Performance, Web Content Accessibility Guidelines, Server Side, Semantic Web, Software Installation
★ 4.7 (17K) · Mixed · Course · 1 - 4 Weeks

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 (3.8K) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Medical Billing and Coding, Denial Management, Patient Registration, Revenue Cycle Management, ICD Coding (ICD-9/ICD-10), Claims Processing, Payment Processing and Collection, Registration, CPT Coding, Medical Billing, Medical Coding, Billing, Insurance, Insurance Policies, Revenue Management
★ 4.8 (96) · Beginner · Course · 1 - 4 Weeks
Michigan State University
Skills you'll gain: Design Elements And Principles, Photography, Photo Editing, Peer Review, Post-Production, Image Quality, Photo/Video Production and Technology, File Management, Aesthetics, Visual Storytelling, Creative Design, Creativity, Digital Publishing, Web Presence, Social Media, Editing, Storytelling, Copywriting, Information Privacy, Writing
★ 4.7 (6.7K) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Clinical Trials, Clinical Research Ethics, Clinical Research, Healthcare Ethics, Scientific Methods, Statistical Reporting, Ethical Standards And Conduct, Drug Development, Statistical Methods, Statistical Analysis
★ 4.7 (4.4K) · Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Clinical Trials, Clinical Research, Qualitative Research, Data Synthesis, Scientific Methods, Research Methodologies, Data Collection, Research Design, Analysis, Quantitative Research, Risk Analysis, Statistical Methods, Statistical Analysis, Statistical Reporting
★ 4.8 (3.6K) · Mixed · Course · 1 - 3 Months

IE Business School
Skills you'll gain: Product Lifecycle Management, Brand Strategy, Customer experience strategy (CX), Brand Management, Branding, Competitive Analysis, Product Management, Product Planning, Product Strategy, New Product Development, Journey Mapping, Customer Engagement, Design and Product, Demand Planning, Internal Communications, Employee Engagement, Estimation, Consumer Behaviour, Portfolio Management, Conversion Funnel Analysis
★ 4.7 (2.7K) · Beginner · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Portfolio Management, Derivatives, Financial Market, Securities (Finance), Investment Management, Portfolio Risk, Asset Management, Credit Risk, Mortgage Loans, Mathematical Modeling, Investments, Applied Mathematics, Risk Modeling, Estimation, Capital Markets, Futures Exchange, Financial Modeling, Regression Analysis, Market Liquidity, Statistical Methods
★ 4.6 (432) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: AutoCAD, Architectural Drawing, Drafting and Engineering Design, Blueprinting, Technical Drawing, Computer-Aided Design, Plot (Graphics)
★ 4.3 (74) · Beginner · Guided Project · Less Than 2 Hours

Northwestern University
Skills you'll gain: Leadership, Negotiation, Organizational Leadership, Teamwork, Leadership Development, Leadership and Management, Team Management, Team Building, Organizational Structure, People Development, Collaboration, Team Performance Management, Professional Development, Employee Coaching, Personal Development
★ 4.8 (3.5K) · Mixed · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Electrical Systems, Electrical Wiring, Electrical Power, Electric Power Systems, HVAC, Construction Inspection, Electrical Equipment, Engineering Calculations, Architectural Design, Mechanical Design, Systems Analysis, Energy and Utilities, Building Codes, Structural Analysis, Cost Estimation
★ 4.7 (732) · Intermediate · Course · 1 - 3 Months