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 Pennsylvania
Skills you'll gain: Ancient History, Art History, Anthropology, Social Studies, Timelines, World History, Public History, Liberal Arts, Writing
★ 4.6 (2.9K) · Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Object Oriented Design, Unity Engine, Object Oriented Programming (OOP), Video Game Development, Software Design Patterns, C# (Programming Language), Debugging, Data Structures, Software Design, Game Design, Prototyping, Programming Principles, Data Storage, Code Reusability, Graph Theory, C and C++, Event-Driven Programming, Software Architecture, Application Design, Algorithms
★ 4.7 (2.8K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Storyboarding, User Experience Design, Design Reviews, Figma (Design Software), UI/UX Research, Graphic and Visual Design, Wireframing, User Story, Usability Testing, Information Architecture, Mockups, Adobe XD, User Experience, Ideation, Persona (User Experience), Web Presence, Responsive Web Design, Graphic and Visual Design Software, Layout Design, Design Elements And Principles
★ 4.8 (5K) · Beginner · Professional Certificate · 3 - 6 Months

Indian School of Business
Skills you'll gain: Financial Statements, Financial Statement Analysis, Financial Trading, Balance Sheet, Securities Trading, Income Statement, Market Liquidity, Financial Market, Market Dynamics, Market Analysis, Investments, Cash Flows, Equities, Order Management, Portfolio Management, Return On Investment, Risk Analysis
★ 4 (1.8K) · Beginner · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: International Finance, Derivatives, Financial Systems, Balance Sheet, Financial Market, Payment Systems, Financial Policy, Banking, Capital Markets, Financial Trading, Economics, Market Liquidity, Financial Regulation, Credit Risk, Market Dynamics
★ 4.9 (1.7K) · Mixed · Course · 3 - 6 Months

University of Pennsylvania
Skills you'll gain: Calculus, Mathematical Theory & Analysis, Algebra, Advanced Mathematics, Applied Mathematics, Derivatives
★ 4.7 (2.4K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Phlebotomy, Blood Collection, Urinalysis, Geriatrics, Laboratory Testing, Venipuncture, Electocardiography, Pediatrics, Specimen Collection, Patient Education and Support, Medical Laboratory, Cardiology, Child Health, Medical Assistance, Patient Preparation, Cardiac Dysrhythmia, Diagnostic Tests, Basic Patient Care, Patient Communication, Infection Control
★ 4.7 (18) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Journey Mapping, Business Transformation, SAP S/4HANA, Technology Solutions, Technical Documentation, Relationship Building, Software As A Service, Consultative Approaches, Enterprise Architecture, ABAP RESTful Programming Model (RAP), Solution Architecture, Enterprise Resource Planning, System Design and Implementation, Project Implementation, Project Closure, Test Planning, Requirements Analysis, Stakeholder Communications, Project Management, Workforce Development
★ 4.6 (1.7K) · Beginner · Professional Certificate · 3 - 6 Months

Yonsei University
Skills you'll gain: TCP/IP, Routing Protocols, Network Protocols, Open Shortest Path First (OSPF), Network Routing, Cybersecurity, Network Monitoring, Network Security, Cyber Attacks, Network Performance Management, Intrusion Detection and Prevention, Network Routers, Network Infrastructure, File Transfer Protocol (FTP), Dynamic Host Configuration Protocol (DHCP), Network Architecture, System Configuration, Network Analysis
★ 4.6 (2.8K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Responsive Web Design, Bootstrap (Front-End Framework), HTML and CSS, Cascading Style Sheets (CSS), Front-End Web Development, Hypertext Markup Language (HTML), Web Design, Browser Compatibility, Web Development Tools, Semantic Web, UI Components, Web Analytics and SEO, Server Side, Animations, Debugging, Javascript, Data Validation
★ 4.7 (1.9K) · Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Development Environment, Engineering Software, Computer Programming, Software Engineering, Data Structures, Memory Management, Computer Programming Tools, Debugging, Program Development
★ 4.7 (3K) · Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: File I/O, Matplotlib, Object Oriented Design, Java, Object Oriented Programming (OOP), Data Analysis, Unit Testing, Pandas (Python Package), Java Programming, Plot (Graphics), Eclipse (Software), Application Development, Data Visualization, Data Structures, Data Science, Data Cleansing, Programming Principles, Computer Programming Tools, Python Programming, Computer Programming
★ 4.5 (1.9K) · Beginner · Specialization · 3 - 6 Months