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: Security Controls, Security Awareness, Change Control, Computer Security Awareness Training, Cybersecurity, Security Management, Information Assurance, Data Security, Safety and Security, Cyber Security Policies, Data Ethics, Human Factors (Security), Cyber Security Assessment, Data Integrity, Authorization (Computing), Identity and Access Management
★ 4.7 (111) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Serverless Computing, Identity and Access Management, Data Pipelines, Google Cloud Platform, Cloud Security, Data Processing, Data Security, Cloud Storage, Containerization
★ 4.1 (94) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Applied Machine Learning, Jupyter, Data Processing, Predictive Modeling, Machine Learning, Model Training, Data Manipulation, Data Preprocessing, Data Science, Model Evaluation, Model Optimization, Data Analysis, Python Programming
★ 4.7 (112) · Intermediate · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: ASP.NET, .NET Framework, Model View Controller, Web Applications, Middleware, Debugging, Web Development, Application Deployment, Application Development, Development Environment, Software Testing, Microsoft Development Tools, Software Design Patterns, Cross Platform Development, Software Architecture, Open Source Technology, Command-Line Interface
★ 4 (79) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Information Systems Security, Risk Management, Security Management, Continuous Monitoring, Information Assurance, Law, Regulation, and Compliance, Cyber Governance, Governance, Regulation and Legal Compliance, Cybersecurity, Security Controls, Risk Mitigation, Cyber Security Policies, Business Risk Management, Risk Management Framework, ISO/IEC 27001, Risk Control, Risk Analysis, Threat Management, Information Systems
★ 4.7 (56) · Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Instructional Strategies, Education Software and Technology, Mathematics Education, Pedagogy, Teaching, Simulations, Web Content Accessibility Guidelines, Simulation and Simulation Software, Research, Peer Review
★ 4.9 (93) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Evaluation, Tensorflow, Model Training, Supervised Learning, Model Optimization, Artificial Neural Networks, Regression Analysis, Applied Machine Learning, Statistical Machine Learning, Machine Learning Algorithms, Deep Learning, Image Analysis, Machine Learning, Random Forest Algorithm, AI Workflows, Decision Tree Learning, Natural Language Processing, Scikit Learn (Machine Learning Library), Data Science, Python Programming
★ 4.4 (92) · Advanced · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Health Policy, Health Systems, Health Assessment, Health Care, Policty Analysis, Research, and Development, Public Health, Public Health and Disease Prevention, Health Promotion, Policy Analysis, Health Administration, Public Policies, Research
★ 4.8 (97) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Call Center Experience, Interviewing Skills, De-escalation Techniques, Customer Relationship Building, Customer Complaint Resolution, Customer Engagement, Customer Service, Problem Solving, Conflict Management, Inbound Calls, Telephone Skills, Professionalism, Verbal Communication Skills, Communication
★ 4.8 (65) · Beginner · Course · 1 - 4 Weeks

Technical University of Munich (TUM)
Skills you'll gain: Traffic Flow Optimization, Transportation Management, Transportation Operations, Sustainable Systems, Demand Planning, Environmental Regulations, Sustainable Design, Environmental Issue, Sustainable Engineering, Regulatory Requirements, Law, Regulation, and Compliance, Sustainable Business, Feasibility Studies, Regulatory Affairs, Emerging Technologies, Regulatory Compliance, Safety Assurance, Concept Of Operations, Customer Demand Planning, Data-Driven Decision-Making
★ 4.5 (92) · Intermediate · Course · 1 - 3 Months

Universidad de Palermo
Skills you'll gain: Crisis Intervention, Mental Health Diseases and Disorders, Mental Health Therapies, Stress First Aid, First Aid, Emergency Response, Emergency Services, Mental Health, Mental and Behavioral Health, Patient Assistance, Preventative Care
★ 5 (89) · Beginner · Course · 1 - 4 Weeks
Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Electrophysiology, Cell Biology, Physiology, Immunology, Biochemistry, Pathology, Endocrinology, Pharmacology, Molecular, Cellular, and Microbiology, Biology, Molecular Biology, Drug Development, Oncology
★ 4.8 (98) · Beginner · Course · 1 - 3 Months