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.

Johns Hopkins University
Skills you'll gain: R (Software), Tidyverse (R Package), Web Scraping, Data Manipulation, Data Wrangling, R Programming, Data Transformation, Memory Management, Data Cleansing, Data Science, Statistical Programming, Data Integration, Data Processing, Text Mining, Data Import/Export, Web Services, Data Analysis, Data Structures, Application Programming Interface (API)
★ 4.3 (1.2K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: IT Service Management, Technical Support and Services, Technical Support, Service Level, Service Management, Help Desk Support, Customer Service, End User Training and Support, Remote Access Systems, Issue Tracking, Technical Communication, Technical Documentation
★ 4.8 (1.2K) · Beginner · Course · 1 - 3 Months

California Institute of the Arts
Skills you'll gain: Animation and Game Design, Animations, Game Design, Design, Technical Design, Conceptual Design, Design Strategies, Design Elements And Principles, Creative Design
★ 4.7 (1K) · Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Text Mining, Natural Language Processing, Data Mining, Unstructured Data, Applied Machine Learning, Web Scraping, Model Evaluation, Machine Learning Algorithms, Web Analytics and SEO, Machine Learning, Model Optimization, Network Analysis, Statistical Modeling, Probability & Statistics
★ 4.5 (965) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Responsible AI, Anomaly Detection, Microsoft Azure, Data Ethics, AI Workflows, Artificial Intelligence, Image Analysis, Computer Vision, Artificial Intelligence and Machine Learning (AI/ML), Natural Language Processing, AI literacy, Machine Learning
★ 4.5 (1.1K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Phlebotomy, Blood Collection, Urinalysis, Patient Education And Counseling, Geriatrics, Laboratory Testing, Venipuncture, Electocardiography, Pediatrics, Specimen Collection, Cardiology, Medical Assistance, Patient Preparation, Cardiac Dysrhythmia, Diagnostic Tests, Basic Patient Care, Infection Control
★ 4.6 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Web Design, Canva (Software), Web Design and Development, Responsive Web Design, Web Content, Graphic and Visual Design Software, Web Presence, Social Media, Design Software, Graphic Design, User Accounts, Business
★ 4.5 (1.5K) · Beginner · Guided Project · Less Than 2 Hours

The Hong Kong University of Science and Technology
Skills you'll gain: Integral Calculus, Calculus, electromagnetics, Engineering, Geometry, Advanced Mathematics, Applied Mathematics, Mechanics, Physics, Derivatives
★ 4.8 (1.4K) · Beginner · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Business Modeling, Strategic Decision-Making, Entrepreneurship, Market Opportunities, Strategic Thinking, Ideation, Innovation, Business Strategies, Customer Analysis, Decision Making, Customer Insights, Market Analysis, New Business Development, Value Propositions
★ 4.7 (1.5K) · Mixed · Course · 1 - 4 Weeks

Yale University
Skills you'll gain: Behavioral Economics, Storytelling, Economics, Economics, Policy, and Social Studies, Financial Forecasting, Forecasting, Socioeconomics, Market Dynamics, General Finance, Analysis, AI literacy
★ 4.8 (904) · Beginner · Course · 1 - 4 Weeks

Tel Aviv University
Skills you'll gain: Biological Engineering, Biotechnology, Cell Biology, Life Sciences, Molecular Biology, Biochemistry, Biology, Anatomy, Molecular, Cellular, and Microbiology, Physiology, Food and Beverage, Food Quality Assurance And Control, Sustainable Development, Environmental Science, Environmental Issue
★ 4.8 (1.2K) · Intermediate · Course · 1 - 4 Weeks

Technion - Israel Institute of Technology
Skills you'll gain: Ideation, Innovation, Creative Problem-Solving, Creative Thinking, Creativity, Operations Management, Problem Solving, Strategic Thinking, Solution Delivery, Initiative and Leadership, Personal Development, Presentations
★ 4.7 (1K) · Mixed · Course · 1 - 3 Months