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.
CertNexus
Skills you'll gain: Extract, Transform, Load, Data Migration, Data Manipulation, Data Preprocessing, Data Cleansing, Data Transformation, Data Warehousing, Data Integration, Data Collection, Data Mining, SQL
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Research, User Feedback, Business Research, Data Collection, Market Research, Data Compilation, Business Analysis
Beginner · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Jupyter, Microservices, AWS SageMaker, Cloud Engineering, Command-Line Interface, Data Pipelines, CI/CD, Package and Software Management, Containerization, Applied Machine Learning, Python Programming, Test Automation, Algorithms
Intermediate · Course · 1 - 4 Weeks

IE Business School
Skills you'll gain: Diversity Equity and Inclusion Initiatives, Diversity and Inclusion, Diversity Awareness, Diversity Training, Workplace inclusivity, Cognitive flexibility, Disabilities, Cultural Diversity, Intercultural Competence, Culture, Innovation, Human Resource Policies, Cultural Responsiveness, Empathy, Gerontology, People Management, Organizational Effectiveness, Employee Engagement, Organizational Change, Team Management
Beginner · Specialization · 3 - 6 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: International Relations, Sustainable Development, Governance, Socioeconomics, Environment, Economic Development, Natural Resource Management, Environmental Policy, Climate Change Adaptation, Oil and Gas, World History, Environmental Science, Energy and Utilities
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Writing, Course Development, Peer Review, Editing, Creativity
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Hardware Design, Electronic Hardware, Schematic Diagrams, Computer-Aided Design, Mechanical Design, Wiring Diagram, Electrical Engineering, 3D Modeling, Electronics, Electronic Components, Simulations, Design Specifications, Open Source Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linear Algebra, Applied Mathematics, Algebra, Advanced Mathematics, Calculus, Differential Equations, Mathematical Theory & Analysis, Geometry
Mixed · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Web Design and Development, Cascading Style Sheets (CSS), Front-End Web Development, User Interface (UI), Browser Compatibility, Javascript, Mobile Development, Interactive Design
Intermediate · Guided Project · Less Than 2 Hours

Columbia University
Skills you'll gain: Image Analysis, Computer Graphics, 3D Modeling, Virtual Reality, Computer Vision, Visualization (Computer Graphics), Mathematical Modeling, Linear Algebra
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, UI Components, Web Design, Front-End Web Development, Animations, Mockups, User Interface (UI), Web Development, Debugging
Intermediate · Specialization · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Cyber Governance, Cyber Risk, Cyber Security Assessment, Security Strategy, Cyber Security Policies, Security Management, Security Awareness, Threat Modeling, Information Privacy, Infrastructure Security, Risk Management, Vulnerability Assessments
Beginner · Course · 1 - 3 Months