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.

University of Colorado Boulder
Skills you'll gain: Crisis Management, Strategic Communication, Communication Planning, Emergency Response, Corporate Communications, Contingency Planning, Communication Strategies, Case Studies, Stakeholder Communications, Internal Communications
★ 4.6 (24) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Brand Marketing, Branding, Brand Strategy, Brand Awareness, Creative Design, Visual Storytelling, Target Audience, Brand Management, User Feedback, Customer Insights, Storytelling, Growth Strategies, Marketing, Driving engagement, Market Research, Target Market, Promotional Strategies, Social Media, Customer Analysis, Digital Marketing
★ 4.6 (18) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Power Automate/Flow, Microsoft Power Platform, Email Automation, Document Management, Microsoft 365, Invoicing, Microsoft Office, Collaborative Software, Billing & Invoicing, Workflow Management, Billing, Automation, User Accounts
★ 4 (21) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Postman API Platform, Application Programming Interface (API), Software Testing, Restful API, Development Environment, Collaborative Software, Test Tools, Web Applications, Data Import/Export, User Interface (UI), Authentications
★ 4.4 (25) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Object Oriented Design, Software Documentation, Java Programming, Java, Technical Documentation, Computer Programming, Programming Principles, Code Reusability, Computer Science
★ 4.2 (22) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Wrangling, Exploratory Data Analysis, Tidyverse (R Package), Data Manipulation, Data Transformation, R Programming, R (Software), Data Processing, Data Preprocessing, Data Analysis, Statistical Programming, Text Mining, Correlation Analysis
★ 4.6 (34) · Mixed · Course · 1 - 3 Months
Skills you'll gain: Terraform, Infrastructure as Code (IaC), Infrastructure As A Service (IaaS), Cloud Infrastructure, Amazon Web Services, IT Automation, Amazon Elastic Compute Cloud, Code Reusability, Infrastructure Architecture, Cloud Management, Cloud Platforms, Data Security, Dependency Analysis
★ 4.1 (21) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Telehealth, Clinical Assessment, Health Technology, Vital Signs, Health Assessment, Patient Preparation, Patient Evaluation, End User Training and Support, Patient Education and Support, Patient Communication, Environment Health And Safety, Patient Safety, Problem Management
★ 4.9 (39) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linear Algebra, Differential Equations, Applied Mathematics, Advanced Mathematics, Algebra, Mathematical Modeling, Mathematical Theory & Analysis
★ 4.6 (27) · Mixed · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Routing Protocols, Network Routing, Virtual Local Area Network (VLAN), TCP/IP, Network Administration, Network Switches, General Networking, Network Architecture, OSI Models, Network Routers, Network Planning And Design, Network Engineering, Local Area Networks, Networking Hardware, Computer Networking, Network Infrastructure, Network Model, Network Protocols, Command-Line Interface
★ 3.9 (18) · Mixed · Course · 1 - 3 Months

L&T EduTech
Skills you'll gain: Engineering Calculations, Structural Engineering, Structural Analysis, Construction Engineering, Civil Engineering, Construction, Engineering Analysis, Engineering Practices, Building Codes, Construction Inspection, Civil and Architectural Engineering, Conceptual Design, Engineering Design Process, Engineering, Design Specifications, Maintenance, Repair, and Facility Services, Stormwater Management, Facility Repair And Maintenance, Finite Element Methods, Continuous Monitoring
★ 4.7 (27) · Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Pandas (Python Package), Data Manipulation, Data Analysis, Python Programming
★ 4.6 (29) · Beginner · Guided Project · Less Than 2 Hours