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: People Analytics, Human Resource Strategy, Human Resources Management and Planning, People Management, Human Resources, Workforce Planning, Talent Management, Organizational Effectiveness, Performance Metric, Workforce Management, Analytics, Performance Appraisal, Staff Management, Performance Measurement, Employee Performance Management, Data-Driven Decision-Making, Performance Analysis, Social Network Analysis, Performance Management, Collaboration
★ 4.6 (6.2K) · Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Excel Macros, Programming Principles, Visual Basic (Programming Language), Program Development, Data Import/Export, Object Oriented Programming (OOP), Microsoft Excel, Problem Solving, Computer Programming, Solution Design, Simulations, Debugging, Code Review, Data Cleansing, Code Reusability, Spreadsheet Software, UI Components, Automation, Data Management, User Interface (UI)
★ 4.8 (4.8K) · Beginner · Specialization · 3 - 6 Months

University of California San Diego
Skills you'll gain: Graph Theory, Logical Reasoning, Cryptographic Protocols, Combinatorics, Computational Logic, Deductive Reasoning, Cryptography, Probability, Key Management, Computational Thinking, Encryption, Probability & Statistics, Programming Principles, Network Analysis, Theoretical Computer Science, Bayesian Statistics, Python Programming, Algorithms, Arithmetic, Computer Programming
★ 4.5 (3.7K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Building Codes, Construction, Safety Standards, Building Design, Facility Management and Maintenance, Hazard Analysis, Safety and Security, Firewall, Design Specifications, Systems Integration
★ 4.6 (80) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Respiration, Human Musculoskeletal System, Cardiology, Blood Pressure, Respiratory Care, Respiratory Therapy, Pulmonology, Capillary, Hemodynamics, Clinical Practices, Cell Biology, Physiology, Anatomy, Endocrinology, Diagnostic Tests, Patient Evaluation, Nephrology, Orthopedics, Cardiac Dysrhythmia, Interactive Learning
★ 4.5 (78) · Beginner · Specialization · 3 - 6 Months

Rice University
Skills you'll gain: Cost Estimation, Project Scoping, Communication Planning, Cost Management, Engineering Management, Scope Management, Project Estimation, Project Schedules, Earned Value Management, Team Management, Quality Assurance, Stakeholder Management, Team Performance Management, Risk Management, Organizational Structure, Project Documentation, Stakeholder Engagement, Project Management, Procurement, Planning
★ 4.7 (4.9K) · Beginner · Specialization · 3 - 6 Months
University of Pennsylvania
Skills you'll gain: Ancient History, Art History, Liberal Arts, World History, Aesthetics, Performing Arts, European History, Ethical Standards And Conduct, Anthropology, Sociology, Psychology
★ 4.8 (2.6K) · Mixed · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Version Control, Hypertext Markup Language (HTML), GitHub, Git (Version Control System), HTML and CSS, Cascading Style Sheets (CSS), Web Design and Development, Web Development, Web Design, Software Versioning, Image Quality, Web Development Tools, Web Content, Front-End Web Development, Web Presence, Web Servers, Frontend Performance
★ 4.7 (3.7K) · Beginner · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Music, Instrumental Music, Music Performance
★ 4.8 (2.3K) · Mixed · Course · 1 - 3 Months

University of Washington
Skills you'll gain: Regression Analysis, Model Evaluation, Predictive Modeling, Supervised Learning, Statistical Machine Learning, Statistical Modeling, Model Training, Applied Machine Learning, Machine Learning Algorithms, Machine Learning Methods, Feature Engineering, Machine Learning, Data Preprocessing, Model Optimization, Statistical Methods, Algorithms
★ 4.8 (5.6K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, OpenAI API, Responsible AI, ChatGPT, OpenAI, AI Integrations, AI Security, Multimodal Prompts, Model Deployment, GitHub, AI powered creativity, Program Development, Git (Version Control System), LLM Application, Web Development Tools, Artificial Intelligence, Web Applications, AI Workflows, AI literacy, Generative AI
★ 4.7 (1.8K) · Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Research, Energy and Utilities, Vocabulary, Learning Strategies, Climate Change Mitigation, Literacy, English Language, Environment, Sustainable Technologies, Environmental Issue, Language Learning, Scientific Methods, Environmental Science, Grammar
★ 4.8 (2.9K) · Beginner · Course · 1 - 3 Months