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.

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development Tools, Browser Compatibility, Application Deployment, Front-End Web Development, Web Development, Animations, Development Environment, UI Components, Usability, Javascript, Frontend Performance, Maintainability, User Interface (UI)
Beginner · Specialization · 3 - 6 Months
Stanford University
Skills you'll gain: Bayesian Network, Applied Machine Learning, Machine Learning Algorithms, Markov Model, Machine Learning, Statistical Modeling, Network Analysis, Probability Distribution, Statistical Methods, Algorithms
Advanced · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Prompt Engineering, Responsive Web Design, Node.JS, Command-Line Interface, TypeScript, Unit Testing, SQL, HTML and CSS, Web Content Accessibility Guidelines, Typography, Cascading Style Sheets (CSS), Ajax, React.js, User Interface and User Experience (UI/UX) Design, Hypertext Markup Language (HTML), JavaScript Frameworks, JSON, Generative AI, Database Design, UI Components
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Financial Statement Analysis, Financial Analysis, Return On Investment, Profit and Loss (P&L) Management, Financial Modeling, Performance Metric, Accounting, Finance, Operating Expense, Investments
Intermediate · Guided Project · Less Than 2 Hours
Ludwig-Maximilians-Universität München (LMU)
Skills you'll gain: Organizational Structure, Organizational Strategy, Organizational Effectiveness, Organizational Change, Strategic Leadership, Business Strategy, Strategic Decision-Making, Strategic Planning, Growth Strategies, Innovation
Mixed · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Institutional Review Board (IRB), Data Visualization, Descriptive Statistics, Quantitative Research, Plot (Graphics), Data Literacy, Scientific Methods, Graphing, Research Design, Statistical Hypothesis Testing, Probability & Statistics, Research, Statistical Inference, Statistics, Statistical Analysis, Surveys, Sample Size Determination, Ethical Standards And Conduct, Data Analysis, Research and Design
Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Mechanical Engineering, Statistical Methods, Engineering, Physics, Probability Distribution, Physical Science, Chemistry, Calculus
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Plotly, Dashboard, Pandas (Python Package), Data Manipulation, Interactive Data Visualization, Data Visualization Software, Data Visualization, Web Applications, Data Science, Data Analysis, Python Programming
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Portfolio Management, Portfolio Risk, Financial Modeling, Correlation Analysis, Investment Management, Financial Analysis, Risk Modeling
Intermediate · Guided Project · Less Than 2 Hours

MathWorks
Skills you'll gain: Image Analysis, Matlab, Computer Vision, Spatial Data Analysis, Digital Signal Processing, Geospatial Information and Technology, Quantitative Research, Algorithms
Beginner · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Maternal Health, Midwifery, Child Health, Postpartum Care, Prenatal Care, Health Disparities, Obstetrics And Gynecology, Primary Care, Dignity in Care, Social and Human Services, Patient-centered Care, Health Policy, Cultural Responsiveness, Advocacy, Education and Training
Intermediate · Course · 1 - 3 Months

American Psychological Association
Skills you'll gain: Quantitative Research, Scientific Methods, Research Design, Surveys, Research, Research and Design, Correlation Analysis, Data Collection, Experimentation, Data Analysis, Psychology, Sampling (Statistics)
Beginner · Course · 1 - 3 Months