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: Immunology, Pharmacology, Infectious Diseases, Chronic Diseases, Physiology, Hematology, Preventative Care, Blood Banking, Pathology, Laboratory Testing, Molecular Biology, Diagnostic Tests, Molecular, Cellular, and Microbiology, Cell Biology, Biochemistry
★ 4.8 (332) · Intermediate · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Graphic and Visual Design, Graphic Design, Graphic and Visual Design Software, Visual Design, Design, Color Theory, Design Elements And Principles, Creative Design, Design Software, Conceptual Design, Design Reviews, Adobe Photoshop, Visual Storytelling, Design Strategies, Image Analysis, Creative Thinking, Creativity
★ 4.8 (18K) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Supervised Learning, Applied Machine Learning, Jupyter, Scikit Learn (Machine Learning Library), Machine Learning, Model Training, NumPy, Machine Learning Algorithms, Predictive Modeling, Classification Algorithms, Feature Engineering, Artificial Intelligence, Model Evaluation, Data Preprocessing, Python Programming, Logistic Regression, Model Optimization, Regression Analysis, Algorithms
★ 4.9 (33K) · Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: Grammar, Writing, English Language, Literacy
★ 4.7 (20K) · Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Rmarkdown, Version Control, Data Science, R (Software), Git (Version Control System), GitHub, Software Versioning, Data Literacy, General Science and Research, Data Analysis, R Programming, Development Environment, Statistical Reporting, Software Installation
★ 4.6 (34K) · Mixed · Course · 1 - 4 Weeks

Emory University
Skills you'll gain: Public Health, Public Health and Disease Prevention, Epidemiology, Community Health, Nutrition and Diet, Emergency Response, Crisis Intervention, Sanitation, Infection Control, Health Promotion, Water Resources, Infectious Diseases, Chronic Diseases, Health Administration, Mental Health, Data Collection
★ 4.8 (382) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Preventative Care, Postpartum Care, Infant Care, Pediatrics, Public Health and Disease Prevention, Health Assessment, Endocrinology, Pharmacology, Clinical Monitoring, Cardiology, Diagnostic Tests, Laboratory Testing, Hematology, Communication Disorders, Infectious Diseases
★ 4.8 (633) · Beginner · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Web Design, Verification And Validation, Web Design and Development, Cloud Hosting, Web Development, Front-End Web Development, Web Content, Web Development Tools, GitHub, Semantic Web, Responsive Web Design, Integrated Development Environments, Web Servers, Cascading Style Sheets (CSS)
★ 4.7 (28K) · Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Medical History Documentation, Medical Terminology, Pulmonology, Cardiology, Electronic Medical Record System, Medical Records, Endocrinology, Respiratory Care, Respiration, Hematology, Anatomy, Immunology, Diagnostic Tests
★ 4.9 (215) · Beginner · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Sanitation, Crisis Intervention, Public Health, Public Health and Disease Prevention, Water Resources, Social and Human Services, Chronic Diseases, Human Services, Emergency Response, Public Safety and National Security, Nutritional Assessment, Environment Health And Safety, Nutrition and Diet, Community Health, Health Systems, Epidemiology, Health Care, Infectious Diseases, Mitigation, Patient Treatment
★ 4.8 (578) · Beginner · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Database Design, Data Store, Database Software, Relational Databases, SQL, Databases, Data Visualization Software, Database Management, Web Scraping, Data Modeling, Object Oriented Programming (OOP), Data Processing, Python Programming, Application Programming Interface (API)
★ 4.8 (22K) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: HTML and CSS, Web Design and Development, Front-End Web Development, Responsive Web Design, Web Applications, Web Design, Ajax, Hypertext Markup Language (HTML), Cascading Style Sheets (CSS), Web Development, Web Development Tools, Development Environment, Javascript, Frontend Performance, Web Content Accessibility Guidelines, Server Side, Semantic Web, Software Installation
★ 4.7 (17K) · Mixed · Course · 1 - 4 Weeks