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.

Skills you'll gain: User Accounts, Linux, Linux Administration, Shell Script, Linux Commands, Command-Line Interface, Operating System Administration, System Monitoring, Unix Commands, File Systems, Unix, File Management, Software Installation, Virtual Machines, System Configuration, Operating Systems, Network Troubleshooting
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Responsive Web Design, Web Design, User Experience Design, Usability, User Centered Design, User Interface (UI) Design, Persona (User Experience), Adobe Photoshop, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Unix Commands, Unix, Unix Shell, Remote Access Systems, Scripting, Systems Administration, Operating System Administration, Command-Line Interface, IT Automation, Linux, User Accounts, File Management, File Systems, Role-Based Access Control (RBAC), File Transfer Protocol (FTP)
Intermediate · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Exploratory Data Analysis, Project Design, Data Mining, Ideation, Design Thinking, Data Analysis, Business Analytics, Analytics, Business Analysis, Sprint Planning, Unsupervised Learning, Case Studies, Anomaly Detection, Tree Maps
Beginner · Course · 1 - 3 Months

Google - Spectrum Sharing
Skills you'll gain: Key Management, Interoperability, Configuration Management, Telecommunications, Wireless Networks, Authorization (Computing), Data Validation
Advanced · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Social Determinants Of Health, Health Promotion, Food Safety and Sanitation, Public Health and Disease Prevention, Public Health, Epidemiology, Nutrition and Diet, Policy Development, Health Policy, Public Policies, Policy Analysis, Program Evaluation
Beginner · Course · 1 - 3 Months

Università di Napoli Federico II
Skills you'll gain: Financial Market, Portfolio Management, Investments, Equities, Portfolio Risk, Market Liquidity, Capital Markets, Finance, Risk Analysis, Economics, Probability Distribution, Decision Making
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Scalability, Performance Tuning, C++ (Programming Language), System Programming, Computer Architecture, Cross Platform Development, Hardware Architecture, C (Programming Language), Application Performance Management, Build Tools
Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Cryptography, Encryption, Data Security, Cybersecurity, Network Security, Public Key Infrastructure, Data Encryption Standard, Security Engineering, Blockchain, Data Storage Technologies, Wireless Networks, Security Management, Virtual Private Networks (VPN), Intellectual Property, Authentications, Hardware Architecture, Emerging Technologies
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Community Development, Sustainable Development, Environmental Policy, Policy Analysis, Sustainable Technologies, Climate Change Mitigation, Policy Development, Public Policies, Environmental Science, Emerging Technologies, Scalability, Technology Solutions, Case Studies
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Centers, Ansible, Open Shortest Path First (OSPF), Network Switches, Computing Platforms, Virtual Networking, Virtual Local Area Network (VLAN), Network Infrastructure, Network Engineering, Border Gateway Protocol, Infrastructure Security, Network Monitoring, Data Storage Technologies, Automation, Event Monitoring, Configuration Management
Intermediate · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: Data Presentation, Business, Data Entry, Business Analytics, Data Science, Business Intelligence, Financial Analysis, Microsoft 365, Productivity Software, Data Management, Organizational Skills, Marketing Planning, Project Management, Productivity, Customer Data Management, Record Keeping, Event Planning
Beginner · Course · 1 - 4 Weeks