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 California San Diego
Skills you'll gain: Bioinformatics, Dimensionality Reduction, Unsupervised Learning, Applied Machine Learning, Machine Learning Algorithms, Molecular Biology, Machine Learning Methods, Data Mining, Data Preprocessing, Machine Learning, Data Analysis Software, Life Sciences
★ 4.1 (94) · Intermediate · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Immunology, Infectious Diseases, Physiology, Microbiology, Molecular, Cellular, and Microbiology, Public Health and Disease Prevention, Environment, Pathology, Biology, Research
★ 4.8 (158) · Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Matplotlib, Plot (Graphics), Pandas (Python Package), Seaborn, SQL, Scientific Visualization, Data Visualization, Data Preprocessing, Jupyter, Data Manipulation, NumPy, Data-Driven Decision-Making, Regression Analysis, Accounting, Applied Machine Learning, Data Processing, Database Management, Query Languages, Data Compilation, Python Programming
★ 4.4 (116) · Intermediate · Course · 1 - 3 Months

University of Pennsylvania
Skills you'll gain: Health Insurance Portability And Accountability Act (HIPAA) Compliance, Medical Privacy, General Data Protection Regulation (GDPR), Personally Identifiable Information, Law, Regulation, and Compliance, Information Privacy, Health Information Management, Regulatory Compliance, Compliance Management, Regulation and Legal Compliance, Data Loss Prevention, Health Care Procedure and Regulation, Data Governance, Data Security, Security Controls, Incident Response, Risk Analysis
★ 4.6 (185) · Mixed · Course · 1 - 4 Weeks

Institut Mines-Télécom
Skills you'll gain: Network Engineering, Wireless Networks, Network Security, General Networking, Network Architecture, Network Infrastructure, Mobile Security, Network Protocols, Telecommunications, OSI Models, Communication Systems, Digital Communications, Dataflow, Authentications, Key Management, Encryption
★ 4.7 (134) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, LLM Application, Agentic Workflows, OpenAI API, OpenAI, Large Language Modeling, Tool Calling, Retrieval-Augmented Generation, Artificial Intelligence, AI Integrations, Generative AI, Development Environment, Microsoft Azure, AI literacy, Microsoft Development Tools
★ 4.5 (190) · Intermediate · Specialization · 3 - 6 Months

University of Minnesota
Skills you'll gain: Time Series Analysis and Forecasting, Model Evaluation, Predictive Modeling, Data Preprocessing, Model Training, Regression Analysis, Microsoft Excel, Forecasting, Excel Formulas, Pivot Tables And Charts, Data Manipulation, Data Transformation, Feature Engineering, Statistical Modeling, Spreadsheet Software, Predictive Analytics, Model Optimization, Data Cleansing, Statistical Methods
★ 4.8 (144) · Mixed · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Organizational Skills, Student Support and Services, Higher Education, Planning, Personal Attributes, Family Support, Self-Awareness, Decision Making, Personal Development, Resourcefulness, Goal Setting, Research
★ 4.8 (19) · Beginner · Course · 1 - 3 Months

Curtis Institute of Music
Skills you'll gain: Classical Music, Music Theory, Music, Music History, Instrumental Music, Musical Composition, Music Performance, Performing Arts
★ 5 (169) · Beginner · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Loss Prevention, Waste Minimization, Food Quality Assurance And Control, Supply Chain, Food and Beverage, Supply Chain Management, Supply Chain Systems, Sustainable Development, Production Process, Market Dynamics, Economics, Stakeholder Engagement, Economic Development, Stakeholder Management, Knowledge Transfer, International Relations, Education and Training
★ 4.7 (178) · Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Virtual Teams, Team Leadership, Intercultural Competence, Diversity Awareness, Team Management, Cultural Diversity, Organizational Leadership, Team Building, Diversity and Inclusion, Rapport Building, Cultural Sensitivity, Leadership, Leadership and Management, Cultural Responsiveness, Leadership Development, Team Performance Management, Team Collaboration, Interpersonal Communications, Culture, Relationship Building
★ 4.7 (123) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Computer Programming, Data Persistence, Programming Principles, Python Programming, Data Storage, File Management, Computer Science
★ 4.4 (152) · Intermediate · Course · 1 - 4 Weeks