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: Test Script Development, Selenium (Software)
Beginner · Course · 1 - 4 Weeks

American Psychological Association
Skills you'll gain: Sample Size Determination, Statistical Hypothesis Testing, Statistical Methods, Quantitative Research, Statistical Analysis, Probability & Statistics, Statistical Inference, Statistics, Data Analysis, Regression Analysis, Research Design, Research, Psychology
Beginner · Course · 1 - 3 Months

Duke University
Skills you'll gain: Scalability, Performance Analysis, Simulations, Algorithms, Complex Problem Solving, Theoretical Computer Science, Python Programming, Data Structures, Software Architecture, Software Engineering
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Django (Web Framework), Restful API, Object-Relational Mapping, Bootstrap (Front-End Framework), Application Deployment, HTML and CSS, Model View Controller, Database Management, Web Development, User Accounts, Responsive Web Design, Back-End Web Development, Python Programming
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Writing, Storytelling, Journals, Personal Development, Persistence, Lifelong Learning, Self-Awareness, Self-Motivation, Self-Discipline, Resilience, Creativity, Mindfulness, Mental Concentration, Emotional Intelligence, Overcoming Obstacles
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, Microsoft Visual Studio, Microsoft Excel, R Programming, Data Processing, Data Cleansing
Beginner · Course · 1 - 4 Weeks

Università di Napoli Federico II
Skills you'll gain: Securities (Finance), Portfolio Management, Equities, Investments, Finance, Fixed Asset, Derivatives, Capital Markets, Statistical Methods, Financial Modeling, Risk Analysis, Regression Analysis, Time Series Analysis and Forecasting
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Target Audience, Facebook, Social Media, Persona Development, Social Media Marketing, Social Media Strategy, Customer Insights, Presentations, Web Analytics, Marketing Budgets
Intermediate · Guided Project · Less Than 2 Hours

Duke University
Skills you'll gain: Matplotlib, Data Visualization, Predictive Modeling, Pandas (Python Package), Data Visualization Software, Predictive Analytics, Regression Analysis, Data Analysis, Data Cleansing, Data Science, Machine Learning Algorithms, Statistical Inference, Statistical Modeling, Probability & Statistics, Classification Algorithms, Python Programming
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Legal Risk, Contract Management, Contract Review, Risk Mitigation, Contract Compliance, Procurement, Vendor Contracts, Purchasing, Contract Negotiation, Strategic Sourcing, Decision Making, Verification And Validation
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Social Determinants Of Health, Health Promotion, Food Safety and Sanitation, Public Health and Disease Prevention, Public Health, Epidemiology, Nutrition and Diet, Policy Development, Health Policy, Public Policies, Policy Analysis, Program Evaluation
Beginner · Course · 1 - 3 Months

Skills you'll gain: 3D Assets, 3D Modeling, Unreal Engine, Virtual Environment, Computer Graphics, Augmented and Virtual Reality (AR/VR), Video Game Development, Game Design, Computer Graphic Techniques, Animation and Game Design, Design Elements And Principles, File Management, Editing, Graphics Software, User Interface (UI), Data Import/Export
Beginner · Course · 3 - 6 Months