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: Applied Machine Learning, Data Science, Python Programming, Scikit Learn (Machine Learning Library), NumPy, Computational Thinking, Machine Learning Algorithms, Pandas (Python Package), Data Preprocessing, Data Analysis, Exploratory Data Analysis, Programming Principles, Data Manipulation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Jenkins, Artifactory, Apache Maven, CI/CD, DevOps, Build Tools, Software Configuration Management, Java, GitHub, Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Python Programming, Simulations, Debugging, Pandas (Python Package), Program Development, Unit Testing, Test Case, Data Science, Software Design, Computational Thinking, Integration Testing, Computer Programming, Object Oriented Programming (OOP), Data Manipulation, Software Development
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, Human Computer Interaction, Interaction Design
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Web Components, Frontend Performance, Web Content Accessibility Guidelines, Hypertext Markup Language (HTML), Web Analytics and SEO, Web Design and Development, Semantic Web, Browser Compatibility, Web Applications, Web Content, Responsive Web Design
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Model Evaluation, Apache Hadoop, Machine Learning Methods, Marketing Automation, Marketing Analytics, Digital Marketing, Marketing Strategies, Artificial Intelligence and Machine Learning (AI/ML), Big Data, Customer Insights, Advanced Analytics, Machine Learning, Artificial Neural Networks, Machine Learning Algorithms, Deep Learning, Predictive Analytics
Beginner · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: Model View Controller, Debugging, Responsive Web Design, User Interface (UI), HTML and CSS, Web Design and Development, User Interface and User Experience (UI/UX) Design, AI Product Strategy, Prototyping, Generative AI
Beginner · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Data Storytelling, Data Presentation, Data Visualization Software, Data Visualization, Tableau Software, Presentations, Interactive Data Visualization, Verbal Communication Skills, Data Analysis, Pivot Tables And Charts, Scatter Plots, Stakeholder Communications, Spatial Analysis, Trend Analysis
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Virtual Private Networks (VPN), Network Troubleshooting, Open Shortest Path First (OSPF), Network Engineering, Network Routing, Border Gateway Protocol, TCP/IP, Multiprotocol Label Switching, Network Administration, Network Security, Network Monitoring, Network Performance Management, Dynamic Host Configuration Protocol (DHCP), Authentications, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Plant Operations and Management, Equipment decontamination, Biology, Environment
Beginner · Course · 1 - 3 Months
University of Colorado Boulder
Skills you'll gain: Vibrations, Control Systems, Mechanics, Torque (Physics), Mechanical Engineering, Engineering Analysis, Engineering Calculations, Differential Equations, Mathematical Modeling, Simulation and Simulation Software
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Search Engine Optimization, Web Analytics and SEO, Keyword Research, Auditing, Content Strategy, Web Analytics, Content Performance Analysis, Technical Support, Extensible Markup Language (XML)
Beginner · Course · 1 - 3 Months