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.

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
★ 4.6 (1K) · Beginner · Course · 1 - 4 Weeks

University of Alberta
Skills you'll gain: Infectious Diseases, Social Studies, Anthropology, Anatomy, Physiology, Socioeconomics, Life Sciences, Sustainable Systems, Environment and Resource Management, Environmental Science, Biology, Microbiology, Public Health and Disease Prevention, Pollution Prevention, Taxonomy, Criminal Investigation and Forensics, Art History, Environmental Monitoring
★ 4.9 (1.6K) · Beginner · Course · 3 - 6 Months

National Taiwan University
Skills you'll gain: Supervised Learning, Model Training, Machine Learning, Machine Learning Methods, Statistical Machine Learning, Model Evaluation, Machine Learning Algorithms, Artificial Intelligence and Machine Learning (AI/ML), Theoretical Computer Science, Classification Algorithms, Mathematical Modeling, Statistical Methods, Probability & Statistics, Algorithms, Statistical Inference
★ 4.9 (938) · Beginner · Course · 1 - 3 Months

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

University of Colorado Boulder
Skills you'll gain: Energy and Utilities, Electrical Power, Engineering, Sustainable Technologies, Electric Power Systems, Thermal Management, Basic Electrical Systems, Environmental Issue, Physics, Mechanics, Hydrology, Emerging Technologies, Cost Estimation
★ 4.8 (816) · Beginner · Course · 1 - 3 Months

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, grep, Text Mining, Data Import/Export, Web Services, Data Analysis, Data Structures
★ 4.3 (1.2K) · Intermediate · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Computational Logic, Application Specific Integrated Circuits, Theoretical Computer Science, Data Structures, Verification And Validation, Systems Design, Algorithms, Programming Principles, Design Software, Model Optimization, Digital Design
★ 4.6 (557) · Intermediate · Course · 1 - 3 Months

Michigan State University
Skills you'll gain: Writing, Writing and Editing, Storytelling, Peer Review
★ 4.6 (307) · Beginner · Course · 3 - 6 Months
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Sample Size Determination, Statistical Inference, Estimation, Business Analytics, Statistics, Probability & Statistics, Sampling (Statistics), Statistical Analysis, Microsoft Excel, Excel Formulas, Probability Distribution, Data Analysis
★ 4.8 (1.3K) · Mixed · Course · 1 - 4 Weeks

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, Cryptographic Protocols, Encryption, Public Key Cryptography Standards (PKCS), FinTech, Emerging Technologies, Ledgers (Accounting), Distributed Computing, Case Studies, Digital Assets, Data Integrity, Transaction Processing
★ 4.7 (846) · Beginner · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Systems Thinking, Health Systems, Health Policy, Public Health, Policy Analysis, Policy Development, Public Health and Disease Prevention, Simulations, Systems Analysis, Data Analysis Software
★ 4.6 (1.2K) · Mixed · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Health Insurance Portability And Accountability Act (HIPAA) Compliance, General Data Protection Regulation (GDPR), Medical Privacy, Law, Regulation, and Compliance, Information Privacy, Personally Identifiable Information, Regulatory Compliance, Regulation and Legal Compliance, Compliance Management, Data Security, Health Information Management, Data Loss Prevention, Data Management, Incident Response, Governance, Risk Management
★ 4.8 (859) · Mixed · Course · 1 - 4 Weeks