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.

Columbia University
Skills you'll gain: Portfolio Management, Investment Management, Portfolio Risk, Asset Management, Investments, Risk Modeling, Estimation, Market Liquidity, Risk Management, Financial Market, Financial Trading, Model Optimization, Equities, Securities (Finance), Statistical Methods, Risk Analysis, Transaction Processing, Securities Trading, Market Dynamics, Sampling (Statistics)
★ 4.6 (49) · Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: Video Game Development, Animations, Event-Driven Programming, Animation and Game Design, Cinematography, Game Design, Storyboarding, 3D Assets, Programming Principles, Computer Graphics, Code Reusability, Computer Programming, Computational Logic
★ 4.2 (44) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Video Editing, Video Production, Adobe Premiere, Photo/Video Production and Technology, Storytelling, Post-Production, Visual Storytelling, Adobe Creative Cloud, Content Creation, Timelines, Editing, Creativity, Color Matching
★ 4.1 (58) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Kubernetes, Release Management, Cloud Infrastructure, Software Installation, Application Lifecycle Management, Performance Tuning, Cloud Computing, General Networking, Systems Architecture, Software Architecture, Network Model, Memory Management
★ 4.2 (68) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Descriptive Statistics, Statistical Visualization, Data Transformation, Data Cleansing, Statistical Analysis, Regression Analysis, Statistical Programming, R (Software), Probability, Probability Distribution, Sampling (Statistics), Box Plots, Histogram, R Programming, Statistical Methods, Statistical Software, Microsoft Excel, Statistics, Data Analysis
★ 4.6 (51) · Beginner · Specialization · 3 - 6 Months

Alibaba Cloud Academy
Skills you'll gain: Relational Databases, Plot (Graphics), Load Balancing, Data Visualization Software, Cloud Security, Network Security, Cloud Management, Cloud Computing, Cloud Hosting, Databases, Big Data, Database Management, General Networking, IT Security Architecture, Apache Hadoop, Cloud Infrastructure, Cloud Platforms, Operating System Administration, Apache Spark, Machine Learning
★ 4.6 (145) · Beginner · Specialization · 3 - 6 Months

Yale University
Skills you'll gain: Environmental Science, Sustainable Systems, Natural Resource Management, Environment, Environment and Resource Management, Anthropology, Sustainable Development, Human Development, Culture, Community Organizing, Life Sciences, Teaching, Lecturing, Storytelling, Biology, Systems Thinking, Education and Training, Creativity, Physics
★ 4.8 (164) · Mixed · Course · 1 - 3 Months

Skills you'll gain: GitHub Copilot, Responsive Web Design, Web Components, HTML and CSS, Web Design and Development, Prompt Engineering, Prompt Patterns, AI powered creativity, Web Development Tools, Web Development, Software Engineering, Machine Learning
★ 4.6 (76) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Key Performance Indicators (KPIs), Performance Measurement, Business Metrics, Process Improvement, Continuous Improvement Process, Performance Analysis, Business Process Improvement, Performance Metric, Performance Improvement, Operational Performance Management, Business Analytics, Business Analysis, Operational Efficiency
★ 4.6 (94) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: System Programming, Visual Basic (Programming Language), Database Management, System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Computer Networking, Computer Programming, Network Protocols, Software Development, Automation, Cloud Computing, Debugging
★ 4.6 (117) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, HTML and CSS, JSON, React.js, Jest (JavaScript Testing Framework), Hypertext Markup Language (HTML), Javascript, Bootstrap (Front-End Framework), Web Design, Web Development Tools, Web Design and Development, Cascading Style Sheets (CSS), Software Testing, Unit Testing, User Experience Design, Frontend Integration, Web Development, Mobile Development, JavaScript Frameworks, Test Case
★ 3.4 (82) · Beginner · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Probability & Statistics, Statistical Analysis, Statistics, Data Literacy, Data Visualization, Statistical Hypothesis Testing, Statistical Visualization, Descriptive Statistics, Data Analysis, Analytics, Statistical Methods, Histogram, Plot (Graphics), Probability, Simulations, Probability Distribution, Correlation Analysis, Statistical Inference, Estimation, Sampling (Statistics)
★ 4.8 (63) · Beginner · Course · 1 - 4 Weeks