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: Model Evaluation, Feature Engineering, Bioinformatics, Model Training, Dimensionality Reduction, Predictive Modeling, Applied Machine Learning, Artificial Neural Networks, Machine Learning Methods, Predictive Analytics, Pandas (Python Package), Drug Development, Data Preprocessing, Unsupervised Learning, Data Manipulation, Medical Science and Research, Molecular, Cellular, and Microbiology, Scientific Visualization, Molecular Biology, Machine Learning
Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Music History, World Music, Classical Music, Music, Music Theory, Performing Arts, Musical Composition, Art History
Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Java Programming, Object Oriented Programming (OOP), Object Oriented Design, Java, Code Reusability, Maintainability, Programming Principles, Computer Programming, Application Development, Android Development, Memory Management
Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Entrepreneurship, Commercialization, Innovation, Presentations, Market Opportunities, Ideation, Product Development, Product Design, Customer Insights, Customer Analysis
Beginner · Course · 1 - 3 Months

Skills you'll gain: User Research, User Feedback, Business Research, Market Research, Business Analysis
Beginner · Guided Project · Less Than 2 Hours

National Taiwan University
Skills you'll gain: Civil Law, Court Systems, Legal Proceedings, Litigation and Civil Justice, Case Law, Law, Regulation, and Compliance, Governance, Social Studies, Social Justice, Social Sciences, Gerontology, Political Sciences, Regulation and Legal Compliance, Economic Development, Public Administration, Advocacy
Beginner · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Peer Review, Analytical Skills, Complex Problem Solving, Analysis, Data Literacy, Data Analysis, Constructive Feedback, Data Storytelling, Value Propositions, Data Integration, Exploratory Data Analysis, Data Presentation, Presentations
Mixed · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Data Visualization, Data Analysis, Generative AI, Statistical Methods, Data Management, Problem Solving
Beginner · Course · 1 - 4 Weeks
CertNexus
Skills you'll gain: Extract, Transform, Load, Data Preprocessing, Data Cleansing, Data Processing, Data Transformation, Data Integration, Data Import/Export, Data Mining
Intermediate · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Business Economics, Game Theory, Market Dynamics, Economics, Market Analysis, Supply And Demand, Operating Cost, Economics, Policy, and Social Studies, Cost Benefit Analysis, Public Policies, Cost Accounting, Consumer Behaviour, Policy Analysis, Research, and Development, Competitive Analysis, Environmental Issue, Production Process, Resource Allocation, Budgeting, Decision Making
Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Networking Hardware, Network Infrastructure, Network Routers, Network Switches, Network Architecture, Internet Of Things, General Networking, Network Administration, Infrastructure Security, Network Planning And Design, Network Security, Cloud-Based Integration, System Implementation, Cloud Computing
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cascading Style Sheets (CSS), Responsive Web Design, Browser Compatibility, Hypertext Markup Language (HTML), HTML and CSS, Web Development Tools, Web Design, Web Development
Intermediate · Guided Project · Less Than 2 Hours