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.

Yale University
Skills you'll gain: Environmental Issue, Environment, Climate Change Programs, Cultural Sensitivity, Sustainable Development, Natural Resource Management, Sustainable Systems, Liberal Arts, Culture, Cultural Diversity
★ 4.8 (30) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Incident Response, Intrusion Detection and Prevention, Computer Security Incident Management, Incident Management, Threat Detection, Security Information and Event Management (SIEM), IT Automation, Automation, Event Monitoring, Cyber Threat Intelligence, Continuous Monitoring, System Monitoring, Anomaly Detection, Cybersecurity, Data Analysis Software, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.7 (69) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: JavaScript Frameworks, React.js, Application Development, Application Frameworks, Application Deployment, Web Frameworks, Web Applications, Front-End Web Development, Development Environment, Web Development Tools, Web Development, Frontend Performance, HTML and CSS, Responsive Web Design, Data Access, Server Side, Configuration Management
★ 4.5 (32) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Active Listening, Workplace inclusivity, Empathy, Diversity and Inclusion, Diversity Awareness, Interpersonal Communications, Professional Development, Communication, Communication Strategies, Self-Awareness, Goal Setting
★ 4.8 (38) · Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Command-Line Interface, Network Troubleshooting, Linux Commands, Linux, Linux Servers, Linux Administration, Technical Support, Amazon Web Services, File Management, Remote Access Systems, Network Protocols, Network Security, Operating Systems, Package and Software Management, System Configuration, Scenario Testing, DevOps, Communication
★ 4.8 (28) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Telehealth, Teamwork, Patient Communication, Patient Evaluation, Collaboration, Health Technology, Clinical Assessment, Vital Signs, Health Assessment, Patient Preparation, Health Care, Patient Positioning, Patient Coordination, Patient Education And Counseling, Patient-centered Care, Patient Treatment, Patient Flow, Medical Equipment and Technology, Telecommunications, Communication
★ 4.9 (40) · Beginner · Specialization · 1 - 4 Weeks

O.P. Jindal Global University
★ 5 (28) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Wide Area Networks, Network Security, Routing Protocols, Threat Detection, Threat Management, Security Awareness, Network Administration, TCP/IP, Multiprotocol Label Switching, Network Routing, Virtual Private Networks (VPN), Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Switches, Local Area Networks, Network Protocols
★ 4.6 (22) · Advanced · Course · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Professional Development, Workforce Development, Higher Education, Market Dynamics, Research, Student Engagement, Analysis, Stakeholder Engagement, Decision Making
★ 4.6 (56) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Safety, Electric Power Systems, Electrical Equipment, Maintenance, Repair, and Facility Services, Safety Standards, Hardware Troubleshooting, Electrical Systems, Basic Electrical Systems, Safety Assurance, High Voltage, Power Electronics, Sustainable Technologies, Transportation Operations, Emerging Technologies
★ 4.6 (29) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Agentic Workflows, Generative AI Agents, Agentic systems, AI Orchestration, OpenAI API, OpenAI, LLM Application, AI Integrations, Performance Tuning, Real Time Data, Tool Calling, Prompt Patterns, Prompt Engineering, Token Optimization, AI Security, Application Programming Interface (API), Software Architecture, Application Security
★ 3.8 (9) · Intermediate · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Computer Vision, Image Analysis, Dimensionality Reduction, Artificial Neural Networks, Machine Learning Methods, Deep Learning, Graph Theory, Machine Learning Algorithms
★ 4.6 (35) · Beginner · Course · 1 - 3 Months