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: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Wide Area Networks, Network Security, Threat Detection, Network Administration, TCP/IP, Multiprotocol Label Switching, Computer Networking, Network Routing, Virtual Private Networks (VPN), Network Troubleshooting, Dynamic Host Configuration Protocol (DHCP), Network Switches, Network Protocols
Advanced · Course · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Data Import/Export, Web Scraping, Tidyverse (R Package), Data Integration, Data Manipulation, Data Transformation, Relational Databases, Google Sheets, Unstructured Data, R Programming, Extensible Markup Language (XML), Spreadsheet Software, Databases, SQL, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Reinforcement Learning, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Markov Model, Deep Learning, Decision Support Systems, Simulations, Probability Distribution, Statistical Methods
Intermediate · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Javascript and jQuery, Responsive Web Design, Cascading Style Sheets (CSS), Web Design and Development, HTML and CSS, GitHub, Web Applications, JavaScript Frameworks, Web Development Tools, Git (Version Control System), Infrastructure Architecture, Browser Compatibility, Animations
Build toward a degree
Beginner · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Software Architecture, Amazon Web Services, Amazon DynamoDB, Python Programming, Service Oriented Architecture, Cloud Computing Architecture, Microservices, Serverless Computing, Cloud Applications, Application Programming Interface (API), Databases, Scripting, Programming Principles, Automation, Relational Databases, Application Development, Development Environment
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Visualization, Data Visualization Software, Data Literacy, Statistical Visualization, Data Storytelling, Data Manipulation, Data Presentation, Ggplot2, Data Wrangling, Data Cleansing, R Programming, Tidyverse (R Package), Data Preprocessing, Data Transformation, Data Import/Export, Graphing
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design, Cascading Style Sheets (CSS), Web Design and Development, Front-End Web Development, Mobile Development, Hypertext Markup Language (HTML), Web Development
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Environment, Environmental Monitoring, Physical Science, Hydrology, Environmental Science, Climate Change Adaptation, Geospatial Information and Technology, Geographic Information Systems, Social Studies, World History
Beginner · Course · 1 - 3 Months

Skills you'll gain: Electrical Systems, Automation Engineering, Hydraulics, Control Systems, Mechanical Engineering, Real Time Data, Internet Of Things, Automation, Industrial Engineering, Robotics, Hardware Troubleshooting, Equipment Design, Manufacturing Processes, Production Process, Emerging Technologies, Manufacturing Operations
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: User Research, User Experience Design, User Experience, User Interface and User Experience (UI/UX) Design, Usability, Verification And Validation, Human Computer Interaction, Usability Testing, Design Research, Embedded Systems, Wireframing, Prototyping, Unified Modeling Language, Persona Development
Build toward a degree
Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: Patient Evaluation, Nursing Process, Perioperative Care, Basic Nursing Skills, Nursing Care, Nursing Management, Health Assessment, Nursing, Oncology, Clinical Nursing, Medical Surgical Nursing, Patient Education And Counseling, Diagnostic Tests, Public Health and Disease Prevention, Preventative Care, Radiation Therapy, Surgery, Pathology, Patient Treatment, Epidemiology
Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Social Justice, Environmental Issue, Health Equity, Health Disparities, Environmental Policy, Social Determinants Of Health, Risk Management, Mitigation, Risk Analysis, Public Health, Health Assessment, Policy Development
Beginner · Course · 1 - 4 Weeks