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.

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Secure Coding, Distributed Denial-Of-Service (DDoS) Attacks, Application Security, Security Testing, Authorization (Computing), Authentications, Data Validation, Encryption, Security Controls, Data Security, Vulnerability Scanning, Role-Based Access Control (RBAC), Verification And Validation, Intrusion Detection and Prevention, Database Application, Security Awareness, Cybersecurity, Web Servers, Web Development Tools
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: jQuery, Javascript, Web Applications
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Physical Science, Geographic Information Systems, Physics, Environmental Science, Spatial Analysis, Environment, General Science and Research, Remote Access Systems, Life Sciences, Laboratory Research, Biology, Research, Timelines, Systems Of Measurement
Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Sustainable Development, Sustainable Business, Environmental Policy, Environmental Regulations, Environmental Resource Management, Environmental Social And Corporate Governance (ESG), Climate Change Mitigation, Cost Benefit Analysis, Natural Resource Management, Economics, Oil and Gas, Policy Analysis, Market Dynamics, Public Policies, Decision Making
Beginner · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Typography, Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Web Design, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MySQL Workbench, MySQL, Database Design, SQL, Database Management, Relational Databases, Databases, Data Integration, Data Manipulation, Business Intelligence
Beginner · Guided Project · Less Than 2 Hours

Amazon Web Services
Skills you'll gain: Command-Line Interface, Network Troubleshooting, Linux Commands, Linux, Unix Commands, Network Support, Linux Administration, Technical Support, Network Infrastructure, Amazon Web Services, File Management, Network Protocols, Network Security, Operating Systems, System Configuration, DevOps, Communication
Beginner · Course · 1 - 4 Weeks

Rutgers the State University of New Jersey
Skills you'll gain: Risk Management, Derivatives, Risk Mitigation, Portfolio Risk, Business Risk Management, Financial Trading, International Finance, Market Research
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Malware Protection, Endpoint Security, Mobile Security, Cloud Security, Application Security, Cloud Deployment, Cloud Computing, Threat Detection, Cybersecurity, Information Systems Security, Virtualization, Virtual Machines, Intrusion Detection and Prevention, Encryption
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Sustainable Development, Sustainability Reporting, Waste Minimization, Sustainability Standards, Interactive Learning, Sustainable Business, Sustainable Architecture, Sustainable Technologies, Corporate Sustainability, Training Programs, Construction, Student Engagement, Environmental Issue, Key Performance Indicators (KPIs), Environmental Engineering, Goal Setting, Climate Change Adaptation, Problem Solving, Professional Development, Business Communication
Beginner · Course · 1 - 3 Months

Universidade de São Paulo
Skills you'll gain: Timelines, Cultural Diversity, Anthropology, Liberal Arts, Psychology, Environmental Science, Physics, Biology
Beginner · Course · 1 - 3 Months

Advancing Women in Tech
Skills you'll gain: Amazon Web Services, Technical Product Management, Cloud Security, Cloud Computing Architecture, Virtual Networking, Cloud Computing, Cloud Platforms, Product Management, Product Support, Technical Support, Network Security, Identity and Access Management, Business
Beginner · Course · 1 - 4 Weeks