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.

University of Colorado Boulder
Skills you'll gain: Matplotlib, Seaborn, Plot (Graphics), Pandas (Python Package), NumPy, Data Visualization Software, Code Reusability, Data Visualization, Statistical Visualization, Programming Principles, Computer Science, Computer Programming, Data Wrangling, Data Manipulation, Functional Design, Data Science, Package and Software Management, Python Programming, Exploratory Data Analysis, Computational Logic
★ 4.7 (315) · Beginner · Specialization · 1 - 3 Months

University at Buffalo
Skills you'll gain: Process Mapping, Performance Improvement, Data Collection, Process Improvement, Process Improvement and Optimization, Business Process, Business Process Improvement, Process Design, Data Strategy, Process Analysis, Data-Driven Decision-Making, Performance Measurement, Process Flow Diagrams, Business Priorities, Data Validation, Business Process Modeling, Plan Execution, Data Capture, Operational Performance Management, Performance Analysis
★ 4.6 (275) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Eclipse (Software), Software Testing, Scripting, Test Tools, UI Components, Integrated Development Environments, Web Applications, Java, Functional Testing
★ 4.5 (362) · Beginner · Guided Project · Less Than 2 Hours

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Development Tools, Browser Compatibility, Front-End Web Development, Application Deployment, Web Design and Development, Web Development, Animations, Development Environment, Software Development Tools, UI Components, Javascript, Maintainability, User Interface (UI), Design Strategies
★ 4.6 (251) · Beginner · Specialization · 3 - 6 Months

EDHEC Business School
Skills you'll gain: Investment Management, Portfolio Management, Asset Management, Investments, Portfolio Risk, Machine Learning, Statistical Machine Learning, Applied Machine Learning, Financial Modeling, Predictive Analytics, Market Data, Feature Engineering, Unsupervised Learning, Regression Analysis, Statistical Methods, Analysis, Model Optimization, Estimation, Risk Analysis, Computer Science
★ 3.1 (332) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Virtualization and Virtual Machines, Virtualization, Hardware Troubleshooting, Network Troubleshooting, Computer Hardware, Cloud Computing, Virtual Machines, Technical Support and Services, Technical Support, General Networking, End User Training and Support, Peripheral Devices, Networking Hardware, System Configuration, Data Storage, Network Administration, Information Technology, Hardware Architecture, Data Storage Technologies, Configuration Management
★ 4.6 (214) · Advanced · Course · 1 - 3 Months

Yonsei University
Skills you'll gain: Political Sciences, Policy Analysis, Economic Development, Social Sciences, International Relations, Policy Development, Public Policies, Diplomacy, Economics, Governance
★ 4.8 (278) · Beginner · Course · 1 - 3 Months

Rice University
Skills you'll gain: Mechanics, Problem Solving, Physics, Graphing, Mathematical Modeling, Algebra, Calculus, Physical Science, Applied Mathematics, Mechanical Engineering, Trigonometry
★ 4.7 (209) · Intermediate · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Computer Vision, Image Quality, Image Analysis, Computer Graphics, 3D Modeling, Photography, Virtual Reality, Visualization (Computer Graphics), Medical Imaging, Artificial Neural Networks, Unsupervised Learning, Graph Theory, Dimensionality Reduction, Mathematical Modeling, Estimation, Machine Learning Algorithms, Color Theory, Algorithms, Automation Engineering, Electronic Components
★ 4.7 (244) · Beginner · Specialization · 3 - 6 Months

Imperial College London
Skills you'll gain: Biostatistics, Statistical Analysis, R (Software), R Programming, Statistical Methods, Data Wrangling, Regression Analysis, Exploratory Data Analysis, Statistical Software, Data Analysis, Logistic Regression, Probability & Statistics, Statistical Modeling, Descriptive Statistics, Model Evaluation, Public Health
★ 4.5 (331) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: .NET Framework, C (Programming Language)
★ 4.1 (311) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Entrepreneurship, Market Opportunities, Market Analysis, Innovation, Target Market, Design Thinking, Go To Market Strategy, Product Strategy, Customer Engagement, Entrepreneurial Finance, Business Modeling, Business Strategies
★ 4.6 (330) · Intermediate · Course · 1 - 3 Months