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.

University of Michigan
Skills you'll gain: Sustainable Development, Sustainable Business, Environmental Policy, Environmental Issue, Environmental Regulations, Environment, Environment and Resource Management, Climate Change Programs, Climate Change Mitigation, Financial Policy, Cost Benefit Analysis, Energy and Utilities, Economics, Oil and Gas, Policy Analysis, Market Dynamics, Public Policies, Decision Making
★ 4.8 (27) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Browser Compatibility, Hypertext Markup Language (HTML), HTML and CSS, Web Development Tools, Web Design, Web Development
★ 4.7 (63) · Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Data Ethics, Security Awareness, Ethical Standards And Conduct, Cybersecurity, Responsible AI, digital literacy, Information Privacy, Social Impact, AI Personalization, Media and Communications, Data Security, Personally Identifiable Information, Law, Regulation, and Compliance, General Data Protection Regulation (GDPR), Data Collection
★ 4.6 (23) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Infrastructure As A Service (IaaS), Cloud Infrastructure, Amazon Web Services, IT Automation, Amazon Elastic Compute Cloud, Code Reusability, Infrastructure Architecture, Cloud Management, Cloud Platforms, Data Security, Dependency Analysis
★ 4.1 (21) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Concision, Grant Writing, Writing, Grant Applications, Persuasive Communication, Communication, Organizational Skills, Analytical Skills
★ 4.9 (28) · Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Software Quality Assurance, Software Development Life Cycle, Quality Assurance, Software Quality (SQA/SQC), Software Documentation, Functional Testing, Software Testing, Software Development Methodologies, Acceptance Testing, Test Case, Maintainability, Test Planning, Unit Testing, Software Design, Technical Documentation, Waterfall Methodology, Agile Methodology
★ 4 (25) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Executive Presence, Succession Planning, Team Performance Management, Team Management, Organizational Structure, Diversity and Inclusion, Delegation Skills, Diversity Equity and Inclusion Initiatives, People Development, Organizational Leadership, Engineering Management, Team Building, People Management, Diversity Awareness, Leadership and Management, Team Leadership, Telecommuting, Talent Management, Leadership, Leadership Development
★ 4.4 (19) · Beginner · Course · 1 - 3 Months

Banco Interamericano de Desarrollo
Skills you'll gain: Climate Change Adaptation, Climate Change Mitigation, Water Sustainability, Climate Change Programs, Water Resource Management, Energy and Utilities, Water Resources, Environmental Policy, Sustainable Business, Risk Management, Environmental Monitoring, Risk Analysis, Environmental Science, International Finance
★ 4.9 (56) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: User Interface (UI) Design, Data Persistence, Data Store, Object Oriented Design, Database Application, Database Management, Real Time Data, Program Development, Package and Software Management, Computer Programming, Code Reusability, Data Management, Software Installation, Data Modeling
★ 4.6 (32) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Responsive Web Design, User Interface (UI), UI Components, Figma (Design Software), UI/UX Strategy, User Interface and User Experience (UI/UX) Design, Prototyping, Usability, Usability Testing, Web Design, Interactive Design, User Experience Design, Mobile Development, Style Guides, Web Development, Animations
★ 5 (30) · Intermediate · Course · 1 - 3 Months

Howard University
Skills you'll gain: Linear Algebra, Data Visualization, Applied Mathematics, Plot (Graphics), Scientific Visualization, NumPy, Mathematical Software, Algebra, Jupyter, Data Analysis Software, Mathematical Modeling, Computer Programming Tools, Data Science, Software Development Tools, Python Programming, Software Installation, Data Manipulation, Git (Version Control System), Version Control
★ 4.4 (16) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Anomaly Detection, Malware Protection, Threat Detection, Network Analysis, AI Security, Cybersecurity, Model Evaluation, Network Security, Machine Learning Methods, Classification Algorithms, Microsoft Windows
★ 4.7 (23) · Intermediate · Course · 1 - 4 Weeks