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: Cryptographic Protocols, Blockchain, Cryptography, Encryption, Business Continuity, Application Security, Disaster Recovery, Digital Assets, Threat Modeling, Vulnerability Assessments, Cybersecurity, Enterprise Security, Network Security, Law, Regulation, and Compliance, Data Security, Secure Coding, Key Management, Distributed Denial-Of-Service (DDoS) Attacks, Emerging Technologies, Data Integrity
Beginner · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Physics, Physical Science, Materials science, Chemistry, Energy and Utilities, Mathematical Modeling, Applied Mathematics
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Cascading Style Sheets (CSS), Front-End Web Development, HTML and CSS, Web Design and Development, Responsive Web Design
Intermediate · Guided Project · Less Than 2 Hours

Rutgers the State University of New Jersey
Skills you'll gain: Supplier Quality Management, Procurement, Strategic Sourcing, Risk Management, Business Risk Management, Supply Chain, Supplier Relationship Management, Quality Management, Supply Chain Management, Cost Reduction, Cost Benefit Analysis
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Plotly, Data Visualization, Datamaps, Data Visualization Software, Scatter Plots, Jupyter, Python Programming, Exploratory Data Analysis, Pandas (Python Package), Data Analysis, Medical Science and Research
Beginner · Guided Project · Less Than 2 Hours

Board Infinity
Skills you'll gain: Query Languages, Data Analysis, Software Installation, Performance Tuning, Distributed Computing, Scalability, Data Modeling, Cloud Deployment
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, Game Design, Animation and Game Design, Video Game Development, Animations, User Interface (UI), UI Components, Debugging, Scripting, C# (Programming Language)
Mixed · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Systems Thinking, Environmental Laws, Sustainable Development, Climate Change Adaptation, Land Development, Community Development, Environmental Policy, Social Impact, Sustainable Design, Social Justice, Socioeconomics, Environmental Science, Climate Change Mitigation, Energy and Utilities
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Statistical Modeling, Exploratory Data Analysis, R Programming, Predictive Modeling, Statistical Hypothesis Testing, Tidyverse (R Package), Data Analysis, Data Modeling, Regression Analysis, Data Science, Classification And Regression Tree (CART), Statistical Inference, Statistical Analysis, Rmarkdown, Data Preprocessing, Statistical Methods, Model Evaluation, Machine Learning
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Artificial Intelligence, Generative AI, Machine Learning Algorithms, Mathematical Theory & Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Marketing Strategies, Digital Marketing, Competitive Analysis, Marketing Effectiveness, Marketing Planning, Performance Analysis, Case Studies, Business Strategies, Digital Advertising, Market Analysis, Advertising Campaigns, Consumer Behaviour, Mobile Banking, Analysis
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Content Management Systems, Web Content, Web Design, Web Design and Development, No-Code Development, Web Development, User Accounts, Graphic Design
Beginner · Guided Project · Less Than 2 Hours