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.

Coursera
Skills you'll gain: Database Management, Relational Databases, MySQL, PHP (Scripting Language), SQL, Databases, Object Oriented Programming (OOP), Web Development, Full-Stack Web Development, Hypertext Markup Language (HTML), Back-End Web Development
Intermediate · Guided Project · Less Than 2 Hours

Columbia University
Skills you'll gain: Derivatives, Credit Risk, Financial Market, Portfolio Risk, Capital Markets, Risk Analysis, Risk Management, Market Dynamics, Portfolio Management, Financial Modeling, Operations Research, Mathematical Modeling, Probability Distribution, Applied Mathematics, Computer Programming
Intermediate · Course · 1 - 3 Months

Duke University
Skills you'll gain: LLM Application, Hugging Face, Large Language Modeling, Natural Language Processing, Model Deployment, Open Source Technology, Prompt Engineering, Containerization, Machine Learning
Beginner · Course · 1 - 4 Weeks

Tecnológico de Monterrey
Skills you'll gain: Influencing, Persuasive Communication, Organizational Leadership, Leadership, Industrial and Organizational Psychology, Leadership and Management, Team Motivation, Leadership Development, Stress First Aid, Business Leadership, Psychology, Empowerment, Employee Engagement, Empathy & Emotional Intelligence, Organizational Structure
Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Version Control, Integrated Development Environments, GitHub, Git (Version Control System), Internet Of Things, Software Development Tools, Embedded Systems, Prototyping, Linux, Operating Systems, Peripheral Devices, Command-Line Interface, Computer Hardware
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Preventative Care, Patient Education And Counseling, Pharmacology, Contraindication, Bloodborne Pathogens, Drug Interaction, Health Promotion, Primary Care, Health Disparities, Medication Therapy Management, Clinical Pharmacy, Public Health, Community Health, Patient Advocacy, Clinical Assessment, Epidemiology, Patient Communication, Diagnostic Tests
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: SQL, PostgreSQL, Query Languages
Advanced · Guided Project · Less Than 2 Hours

Skills you'll gain: Keras (Neural Network Library), Tensorflow, Convolutional Neural Networks, Deep Learning, Machine Learning, Computer Vision
Intermediate · Guided Project · Less Than 2 Hours

Arizona State University
Skills you'll gain: Cyber Attacks, Data Security, Safety and Security, Cybersecurity, Security Software, Computer Security Awareness Training, Information Systems Security, Security Strategy, Incident Response, Data Storage, Vulnerability Assessments, Patch Management
Mixed · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Data Quality, Data Collection, Data Management, Data Validation, Data Analysis, Data Preprocessing, Threat Detection, Data Access, Sampling (Statistics)
Beginner · Course · 1 - 4 Weeks

Columbia University
Skills you'll gain: Image Analysis, Computer Vision, Computer Graphics, Classification Algorithms, Algorithms, Linear Algebra, Machine Learning Algorithms
Beginner · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Regression Analysis, Actuarial Science, Derivatives, Financial Market, Statistical Methods, Market Data, Financial Modeling, Securities (Finance), Risk Modeling, Financial Systems, Mathematical Modeling, Numerical Analysis, Applied Mathematics, Python Programming, Process Optimization, Probability Distribution, Algorithms, Case Studies
Intermediate · Course · 1 - 3 Months