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.

Johns Hopkins University
Skills you'll gain: Surveys, Program Evaluation, Survey Creation, Health Policy, Sampling (Statistics), Health Systems, Health Assessment, Health Equity, Data Collection, Quantitative Research, Institutional Review Board (IRB), Nutritional Assessment, Maternal Health, Data Management, Statistical Analysis, Analysis, Nutrition and Diet, Public Health, Research Design, Data Analysis
★ 4.7 (164) · Intermediate · Specialization · 3 - 6 Months

Copenhagen Business School
Skills you'll gain: Business Planning, Social Impact, Team Collaboration, Organizational Structure, Business Modeling, Entrepreneurship, Business Strategies, Entrepreneurial Finance, Fundraising, Organizational Strategy, Governance, Business Development, Value Propositions, Investments, Presentations
★ 4.7 (126) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Disaster Recovery, Security Management, IT Management, System Monitoring, Cyber Security Policies, Enterprise Security, Security Strategy, Systems Administration, Operating System Administration, Security Controls, Patch Management, Continuous Monitoring, Data Maintenance, Information Systems Security, Unix, Data Integrity
★ 4.7 (233) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Education Software and Technology, Course Development, Digital pedagogy, Language Learning, AI Integrations
★ 4.8 (261) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Community Health, Community Development, Public Health, Social Determinants Of Health, Community Organizing, Health Promotion, Health Equity, Public Health and Disease Prevention, Health Disparities, Community Outreach, Health Policy, Community and Social Work, Political Sciences, Driving engagement, Cultural Diversity, Case Studies
★ 4.7 (180) · Mixed · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Containerization, File I/O, Package and Software Management, Unified Modeling Language, Software Testing, Docker (Software), Development Environment, Unit Testing, Application Deployment, Plot (Graphics), Pandas (Python Package), Scripting, Data Modeling, DevOps, Data Persistence, Programming Principles, Python Programming, Scripting Languages, Data Structures, Computer Programming
★ 4 (210) · Beginner · Specialization · 3 - 6 Months

American Psychological Association
Skills you'll gain: Quantitative Research, Scientific Methods, Research Design, Science and Research, Research Methodologies, Research, Research and Design, Data Collection, Peer Review, Data Analysis, Psychology, Data Validation
★ 4.8 (193) · Beginner · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Customer Acquisition Management, Business Planning, Entrepreneurship, Resource Allocation, Business Modeling, Resource Management, Resource Planning, Sales Development, Sales Strategy, Commercialization, Plan Execution, Customer Relationship Building, New Business Development, Business Strategy, Customer Engagement, Go To Market Strategy, Marketing Planning, Entrepreneurial Finance, Operating Budget, Marketing
★ 4.8 (139) · Mixed · Course · 1 - 3 Months

Skills you'll gain: User Experience, Adobe XD, Design Thinking, User Research, Wireframing, Augmented and Virtual Reality (AR/VR), Emerging Technologies, Collaborative Software, Prototyping, Software Development Life Cycle
★ 4.7 (107) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Computer Vision, Image Analysis, Model Evaluation, Model Training, Deep Learning, Matlab, Machine Learning Methods, Data Preprocessing, Model Optimization, Machine Learning, Classification Algorithms, Machine Learning Algorithms, Transfer Learning, Anomaly Detection, Geospatial Information and Technology, Traffic Flow Optimization, Algorithms
★ 4.6 (99) · Intermediate · Specialization · 1 - 3 Months

The University of Edinburgh
Skills you'll gain: Conflict Management, Intercultural Competence, Research, Diversity Awareness, Cultural Diversity, Empathy & Emotional Intelligence, Mediation, Interpersonal Communications
★ 4.7 (153) · Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Cascading Style Sheets (CSS), Web Development Tools, Web Design, Application Deployment, Web Design and Development, Computer Programming Tools, Development Environment, Software Development Tools, UI Components, Web Development, Front-End Web Development, User Interface (UI), Interactive Design, Collaborative Software, Design Elements And Principles
★ 4.7 (141) · Beginner · Course · 3 - 6 Months