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: 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

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

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

Università di Napoli Federico II
Skills you'll gain: Securities (Finance), Portfolio Management, Equities, Investments, Finance, Fixed Asset, Derivatives, Capital Markets, Statistical Methods, Financial Modeling, Risk Analysis, Regression Analysis, Time Series Analysis and Forecasting
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Target Audience, Facebook, Social Media, Persona Development, Social Media Marketing, Social Media Strategy, Customer Insights, Presentations, Web Analytics, Marketing Budgets
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

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

Skills you'll gain: Adobe After Effects, Video Production, Post-Production, Video Editing, Storyboarding, Ideation, Content Creation, Cinematography, Motion Graphics, Creativity, Color Matching
Mixed · 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

Skills you'll gain: Writing, Writing and Editing, Honesty, Storytelling, Journals, Editing, Content Creation, Personal Development, Investigation, Self-Awareness
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Large Language Modeling, Retrieval-Augmented Generation, LLM Application, Embeddings, Agentic systems, Application Development, Data Pipelines, Data Integration, Development Environment
Intermediate · Course · 1 - 4 Weeks

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