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.

Johns Hopkins University
Skills you'll gain: Tidyverse (R Package), Web Scraping, Data Manipulation, R Programming, Data Transformation, Data Cleansing, Big Data, Statistical Programming, Text Mining, Data Import/Export, Data Analysis, Data Structures, Performance Tuning, Application Programming Interface (API)
Intermediate · Course · 1 - 3 Months

Yale University
Skills you'll gain: Health Disparities, Health Systems, Public Health, Epidemiology, Social Determinants Of Health, Health Promotion, Infectious Diseases, Chronic Diseases, Health Policy, Environment Health And Safety, Medical Science and Research, Injury Prevention, Nutrition and Diet
Mixed · Course · 1 - 3 Months

Duke University
Skills you'll gain: Electrical Power, Electric Power Systems, Energy and Utilities, Basic Electrical Systems, Market Dynamics, Operating Cost, Plant Operations and Management, Operational Efficiency, Environmental Regulations, Regulatory Compliance, Dispatching, Capacity Management
Beginner · Course · 1 - 4 Weeks

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, FinTech, Emerging Technologies, Ledgers (Accounting), Business Modeling, Internet Of Things, Distributed Computing, Open Source Technology, Digital Assets, Transaction Processing, Scalability
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Power Electronics, Semiconductors, Electrical Engineering, Electronics, Electronics Engineering, Electronic Components, Simulation and Simulation Software
Build toward a degree
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Programming Principles, C++ (Programming Language), C and C++, Computer Programming, Integrated Development Environments, Pseudocode, Computer Science
Beginner · Course · 1 - 4 Weeks

California Institute of the Arts
Skills you'll gain: Information Architecture, Persona (User Experience), UI/UX Strategy, Web Design, User Experience, Wireframing, User Research, User Centered Design, Mockups, Usability Testing, Requirements Analysis, Target Audience, Agile Methodology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), Web Development, Javascript, Bootstrap (Front-End Framework), Scripting, Browser Compatibility, Application Programming Interface (API), Back-End Web Development
Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Email Security, Productivity Software, Microsoft Outlook, File Management, Collaborative Software, Presentations, Microsoft Teams, Google Docs, Calendar Management, Microsoft PowerPoint, Control Panels, Gmail, Slack (Software), Microsoft Office, Microsoft Word, Spreadsheet Software, Setting Appointments, Google Workspace, Google Sheets, Software Installation
Beginner · Specialization · 3 - 6 Months

The University of Edinburgh
Skills you'll gain: Self-Awareness, Curiosity, Open Mindset, Cognitive flexibility, Emotional Intelligence, Ethical Standards And Conduct, Learning Theory, Psychology, Psychological Evaluations, Surveys, Software Testing
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: User Feedback, Functional Testing, Root Cause Analysis, UI/UX Research, Experience Design, User Experience, Problem Management, User Interface (UI) Design, Integration Testing, Application Development, Network Troubleshooting, Investigation
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Cloud Security, Google Cloud Platform, Security Controls, Cloud Computing, Virtual Networking, Firewall, Network Security, Data Access, Role-Based Access Control (RBAC), Authorization (Computing), Single Sign-On (SSO), Authentications, Public Cloud, Load Balancing
Intermediate · Course · 1 - 3 Months