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: Ggplot2, Plot (Graphics), Data Visualization, Statistical Visualization, Data Visualization Software, Exploratory Data Analysis, Data Presentation, R (Software), Tidyverse (R Package), R Programming, Graphing, Data Wrangling, Data Manipulation
★ 4.7 (20) · Mixed · Course · 1 - 3 Months

University of North Texas
Skills you'll gain: Writing, Grammar, Writing and Editing, Literacy, Proofreading, Editing, Vocabulary, English Language
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Workflow Management, Spreadsheet Software, Project Management Software, Data Entry, Automation, Data Management, Document Management, Collaborative Software, Data Sharing, User Accounts
★ 4.6 (16) · Beginner · Course · 1 - 3 Months

Knowledge Accelerators
Skills you'll gain: Data Presentation, Data Entry, Data Processing, Data Science, Organizational Skills, Business Analytics, Data Management, Business Intelligence, Microsoft 365, Productivity Software, Record Keeping, Customer Data Management, Productivity, Financial Analysis, Marketing Planning, Project Management, Event Planning
★ 4.5 (8) · Beginner · Course · 1 - 4 Weeks

University of Rochester
Skills you'll gain: Health Disparities, Social Determinants Of Health, Health Equity, Community Health, Public Health, Public Health and Disease Prevention, Health Systems, Health Policy, Community Development, Health Informatics, Community Outreach, Data Collection, Value-Based Care, Research, Program Evaluation, Driving engagement
★ 4.4 (10) · Beginner · Course · 1 - 4 Weeks

Universitat Autònoma de Barcelona
Skills you'll gain: Stress First Aid, Pediatric First Aid, First Aid, Developmental Disabilities, Psychosocial Assessments, Mental Health Diseases and Disorders, Resilience, Family Support
★ 4.7 (29) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cryptographic Protocols, Blockchain, Business Continuity Planning, Cryptography, Encryption, Business Continuity, Disaster Recovery, Data Management, Security Engineering, Digital Assets, Threat Modeling, Vulnerability Assessments, Security Architecture Review, Cybersecurity, Regulatory Compliance, Enterprise Security, Network Security, Asset Protection, Vulnerability Management, Data Security
★ 5 (10) · Beginner · Specialization · 1 - 3 Months

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

Akamai Technologies, Inc.
Skills you'll gain: HTML and CSS, Responsive Web Design, Hypertext Markup Language (HTML), Web Design and Development, Cascading Style Sheets (CSS), Web Development, Web Applications, Web Design, Front-End Web Development, Animations, Web Content, Embeddings, Design Elements And Principles, Color Theory
★ 4.7 (27) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Networking Hardware, Network Monitoring, OSI Models, Routing Protocols, Software-Defined Networking, Network Troubleshooting, Network Architecture, Network Protocols, Distributed Denial-Of-Service (DDoS) Attacks, General Networking, Network Security, TCP/IP, Network Routing, Computer Networking, Open Shortest Path First (OSPF), Cloud Technologies, Network Infrastructure, Hardening, Network Performance Management, Authentications
★ 4.5 (17) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: User Accounts, Collaborative Software, Telecommuting, Telecommunications
★ 4.2 (25) · Beginner · Guided Project · Less Than 2 Hours

University of Michigan
Skills you'll gain: Hazard Analysis, Environment Health And Safety, Health Assessment, Safety Standards, Health And Safety Standards, Chemistry, Risk Analysis, Sustainable Engineering, Pollution Prevention, Analytical Chemistry, Personal Care, Epidemiology, Product Lifecycle Management, Environmental Regulations, Environmental Science, Child Health
★ 5 (11) · Intermediate · Course · 1 - 4 Weeks