First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.

Tel Aviv University
Skills you'll gain: Cultural Diversity, Social Studies, Diversity Awareness, Social Justice, Social Sciences, International Relations, World History, Socioeconomics, Culture, Political Sciences, Sociology, Diplomacy, Public History, Demography, Public Affairs, Economics
★ 4.8 (343) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Linear Algebra, Algebra, Advanced Mathematics, Engineering Analysis, Applied Mathematics, Mathematical Theory & Analysis, Geometry
★ 4.7 (180) · Beginner · Course · 1 - 4 Weeks

Yonsei University
Skills you'll gain: Cash Flow Forecasting, Financial Forecasting, Cash Flows, Business Valuation, Excel Formulas, Microsoft Excel, Capital Budgeting, Forecasting, Finance, Financial Modeling, Financial Analysis, Corporate Finance
★ 4.3 (342) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Architectural Design, Sustainable Development, Building Codes, Community Development, Land Development, Public Works, Sustainable Architecture, Land Management, Building Design, Sustainable Design, Sustainable Technologies, Economic Development, Construction, Environmental Issue, Climate Change Mitigation, Environmental Policy, Policy Development, Health Equity, Policy Analysis, Case Studies
★ 4.7 (241) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Eclipse (Software), Software Testing, Scripting, Test Tools, UI Components, Integrated Development Environments, Web Applications, Java, Functional Testing
★ 4.5 (362) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Portfolio Management, Portfolio Risk, Finance, Financial Modeling, Return On Investment, Correlation Analysis, Investment Management, Financial Analysis, Asset Management, Mathematical Modeling, Investments, Risk Modeling, Equities, Model Optimization
★ 4.4 (329) · Intermediate · Guided Project · Less Than 2 Hours

University of California, Davis
Skills you'll gain: Social Network Analysis, Network Analysis, Data Wrangling, Social Sciences, Graph Theory, Data Cleansing, Statistical Visualization, Data Manipulation, Data Visualization, Data Visualization Software, Predictive Analytics
★ 4.7 (248) · Beginner · Course · 1 - 3 Months
Stanford Online
Skills you'll gain: Bayesian Network, Applied Machine Learning, Machine Learning Algorithms, Bayesian Statistics, Machine Learning Methods, Markov Model, Statistical Machine Learning, Machine Learning, Network Model, Unsupervised Learning, Statistical Modeling, Model Training, Probability Distribution, Model Optimization, Statistical Methods, Probability & Statistics, Algorithms
★ 4.6 (305) · Advanced · Course · 1 - 3 Months

Tel Aviv University
Skills you'll gain: Social Justice, Economics, Policy, and Social Studies, Socioeconomics, Tax, Economic Development, Tax Planning, Economics, Public Policies, Tax Compliance, Ethical Standards And Conduct, Policy Analysis, Environmental Policy
★ 4.7 (392) · Mixed · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Blockchain, Payment Systems, Cyber Risk, FinTech, Operational Risk, Scalability, Regulatory Compliance, Risk Management, Financial Regulation, Legal Risk, Financial Regulations, Risk Analysis, Application Security, Vulnerability Assessments, Exploitation techniques, Financial Industry Regulatory Authorities, Regulatory Requirements, Asset Protection, Governance, Key Management
★ 4.9 (361) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: .NET Framework, C (Programming Language)
★ 4.1 (311) · Intermediate · Course · 1 - 4 Weeks

Niel Asher Education
Skills you'll gain: Contraindication, Manual Therapy, Patient Treatment, Patient Evaluation, Pain Management, Exercise Therapy, Health And Safety Standards, Treatment Planning, Physical Therapy, Clinical Practices, Athletic Training, Clinical Assessment, Patient Communication, Mental Health Therapies, Anatomy
Advanced · Course · 1 - 4 Weeks