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.

Columbia University
Skills you'll gain: Reinforcement Learning, Machine Learning Methods, Machine Learning Algorithms, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning, Algorithms, Decision Intelligence, Markov Model, Deep Learning, Applied Machine Learning, Statistical Methods, Sampling (Statistics)
★ 4.4 (24) · Intermediate · Course · 1 - 3 Months

Yale University
Skills you'll gain: Environmental Issue, Sustainable Development, Environment and Resource Management, Cultural Sensitivity, Culture, Social Justice, Liberal Arts, Cultural Diversity, Ethical Standards And Conduct
★ 4.8 (33) · Beginner · Course · 1 - 3 Months

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

Skills you'll gain: Pandas (Python Package), Data Manipulation, Data Analysis, Python Programming
★ 4.6 (28) · Beginner · Guided Project · Less Than 2 Hours
Imperial College London
Skills you'll gain: Virtual Reality, Augmented and Virtual Reality (AR/VR), Virtual Environment, Computer Graphics, Android Development, Computer Graphic Techniques, 3D Assets, Visualization (Computer Graphics), Application Development, Animation and Game Design, Animations, Mobile Development, Creative Design
★ 4.2 (10) · Intermediate · Course · 1 - 4 Weeks

Rutgers the State University of New Jersey
Skills you'll gain: Hedge Accounting, Risk Management, Derivatives, Risk Mitigation, Futures Exchange, Business Risk Management, Financial Trading, International Finance, Contract Management, Finance
★ 4.5 (25) · Intermediate · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Engineering Drawings, Mechanical Drawings, Structural Analysis, Design Specifications, Mechanical Design, Technical Drawing, Engineering Analysis, Process Flow Diagrams, Manufacturing Standards, Thermal Management, Technical Standard, Engineering Calculations, Vibrations, Simulation and Simulation Software, Materials science
★ 4.4 (46) · Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: Patient Evaluation, Nursing Process, Perioperative Care, Nursing and Patient Care, Nursing Care, Nursing Management, 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, General Medical Tests and Procedures, Epidemiology
★ 4.7 (34) · Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Structural Engineering, Structural Analysis, Architectural Engineering, Construction, Architecture and Construction, Building Design, Engineering Design Process, Mechanics
★ 4.8 (30) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Video Editing, Post-Production, Storyboarding, Editing, Video Production, Videography, Animations, Photo/Video Production and Technology, Storytelling, Media Production, Music, Visual Storytelling, Typography, Creative Problem-Solving, Communication
★ 4.2 (16) · Beginner · Specialization · 1 - 3 Months

American Psychological Association
Skills you'll gain: Mental Health Diseases and Disorders, Trauma Care, Mental Health, Mental Health Therapies, Psychology, Psychotherapy, Rehabilitation, Mental and Behavioral Health, Cultural Sensitivity, Patient Evaluation
★ 4.9 (20) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: React Native, Mobile Development, Responsive Web Design, Docker (Software), Azure DevOps, Restful API, Cross Platform Development, Azure DevOps Pipelines, Microservices, Containerization, User Interface and User Experience (UI/UX) Design, DevOps, ASP.NET, UI/UX Strategy, Secure Coding, iOS Development, Development Testing, Mobile Development Tools, CI/CD, Version Control
★ 4.2 (56) · Intermediate · Specialization · 1 - 3 Months