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: Java Platform Enterprise Edition (J2EE), Java Programming, Object-Relational Mapping, Java, Application Servers, Middleware, Application Deployment, Data Persistence, Event-Driven Programming, Enterprise Application Management, Server Side, Code Reusability, Context Management, Transaction Processing, Business Logic, Query Languages
★ 4.8 (59) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: JUnit, Test Driven Development (TDD), Unit Testing, Software Testing, Test Case, Eclipse (Software), Test Data, Test Automation, Test Execution Engine, Integrated Development Environments, Test Script Development, Testability, Java, Test Tools, Program Development, Software Design
★ 3.8 (73) · Intermediate · Specialization · 1 - 3 Months

Erasmus University Rotterdam
Skills you'll gain: Stakeholder Analysis, Stakeholder Management, Stakeholder Engagement, Performance Measurement, Market Opportunities, Business Modeling, Sustainable Development, Environmental Issue, New Business Development, Key Performance Indicators (KPIs), Sustainable Business, Sustainable Systems, Land Management, Environmental Resource Management, Systems Analysis, Financial Analysis, Systems Thinking, Business Architecture, Innovation, Case Studies
★ 4.7 (51) · Beginner · Course · 1 - 3 Months

Queen Mary University of London
Skills you'll gain: Cloud Deployment, Cloud Services, Legal Risk, Cloud Computing, Intellectual Property, Cloud Computing Architecture, Cloud Storage, Cloud Platforms, Contract Negotiation, Cloud Security, Vendor Contracts, Cyber Risk, Contract Review, Law, Regulation, and Compliance, Contract Management, Data Security, Data Governance, Negotiation, Regulatory Requirements, Cybersecurity
★ 4.9 (102) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Tidyverse (R Package), Ggplot2, Spatial Data Analysis, Data Visualization Software, Plot (Graphics), Data Visualization, Statistical Visualization, Spatial Analysis, Geospatial Information and Technology, Data Manipulation, Scatter Plots, R (Software), Plotly, Interactive Data Visualization, R Programming, Geospatial Mapping, Statistical Reporting, Data Wrangling, Graphing
★ 4.9 (81) · Mixed · Course · 1 - 4 Weeks

The University of Sydney
Skills you'll gain: Linear Algebra, Markov Model, Geometry, Arithmetic, Algebra, General Mathematics, Advanced Mathematics, Mathematics and Mathematical Modeling, Applied Mathematics
★ 4.7 (42) · Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: AI powered creativity, Generative AI, AI literacy, Artificial Intelligence, Image Analysis, Creativity, Design Research, Responsible AI, Problem Solving, Critical Thinking
★ 4.5 (68) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Network Architecture, Wireless Networks, Emerging Technologies, Network Engineering, Network Planning And Design, Network Infrastructure, Network Performance Management, Telecommunications, Artificial Intelligence and Machine Learning (AI/ML), Distributed Computing, Technology Strategies
★ 4.4 (29) · Intermediate · Course · 1 - 4 Weeks

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 (74) · Intermediate · Guided Project · Less Than 2 Hours

The University of Edinburgh
Skills you'll gain: Sustainable Development, Cooperation, Discussion Facilitation, Collaboration, Environmental Issue, Community Development, Creative Thinking, Climate Change Programs, Cultural Responsiveness, Community Outreach, Climate Change Adaptation, Environmental Policy, Advocacy, Climate Change Mitigation, Education and Training, Diplomacy, Coordination
★ 4.6 (45) · Beginner · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Professional Networking, Professional Development, Leadership Development, Relationship Building, Consultative Approaches, Rapport Building, Business Consulting, Relationship Management, Consulting, Social Skills, Leadership, Trustworthiness, Amazon Web Services, Adaptability, Technical Consulting, Analytical Skills, Critical Thinking and Problem Solving, Branding, Project Management, Brand Management
★ 4.7 (63) · Beginner · Course · 1 - 4 Weeks
Imperial College London
Skills you'll gain: Virtual Reality, Augmented and Virtual Reality (AR/VR), Android (Operating System), Virtual Environment, 3D Assets, Visualization (Computer Graphics), Android Development, Computer Graphics, Android Studio, Computer Graphic Techniques, Application Development, Animations
★ 4.6 (17) · Advanced · Course · 1 - 4 Weeks