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.

Salesforce
Skills you'll gain: Sales Process, Sales, Salesforce, Customer Relationship Management (CRM) Software, Sales Operations, Customer Relationship Management, General Sales Practices, B2B Sales, Data Management, Customer Data Management, Databases, Data Cleansing, Business-To-Consumer
Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Manufacturing and Production, Digital Transformation, Manufacturing Processes, Manufacturing Operations, Production Process, Product Design, Automation, Digital Design, Digital Analysis, Innovation, Safety and Security, Advanced Analytics, Technology Roadmaps, Cybersecurity, Big Data
Beginner · Course · 1 - 4 Weeks

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Apache Spark, Apache Hadoop, Scala Programming, Distributed Computing, Big Data, Data Manipulation, Data Processing, Performance Tuning, Data Persistence, Data Transformation, SQL, Data Import/Export
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Hypertext Markup Language (HTML), HTML and CSS, Web Development, Multimedia, Web Design and Development, Front-End Web Development, Semantic Web, Browser Compatibility, Web Design, Web Development Tools, Web Content Accessibility Guidelines, Visual Design, Development Environment, Metadata Management, Scripting, Building Design, Data Validation
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Transformation, Data Wrangling, R (Software), Data Analysis, Data Manipulation, R Programming, Data Cleansing, Scripting, Programming Principles, Data Structures
Beginner · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Diversity Awareness, Self-Awareness, Child Development, Psychology, Psychotherapy, Decision Making, Psychiatry, Clinical Psychology, Neurology, Scientific Methods
Intermediate · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Oral Comprehension, English Language, Literacy, Grammar, Language Learning, Vocabulary
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Model View Controller, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), HTML and CSS, Linux, Linux Commands, Application Deployment, Django (Web Framework), Cloud Deployment, Web Applications, Command-Line Interface, Web Servers, Web Development, SQL, Database Management, Python Programming, Software Installation
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Digital Brand Strategy, Driving engagement, Competitive Analysis, Brand Strategy, Experience Design, Brand Management, Customer experience strategy (CX), Brand Awareness, Branding, Digital Marketing, Storytelling, Customer Engagement, Cross-Channel Marketing, Digital Analysis, Digital Media Strategy, Journey Mapping, Market Opportunities, Data-Driven Marketing, Customer Insights, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: TCP/IP, Local Area Networks, Routing Protocols, Network Routing, Digital Communications, OSI Models, Network Protocols, Open Shortest Path First (OSPF), Network Routers, Dynamic Host Configuration Protocol (DHCP), Network Planning And Design, Network Security, Network Switches, General Networking, Virtual Networking, Network Performance Management, Computer Networking, Network Architecture, Network Engineering, Wireless Networks
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Prompt Engineering, Prompt Patterns, AI Orchestration, Vibe coding, AI Workflows, Generative AI Agents, Technical Management, Application Development, Agentic systems, Video Game Development, Development Environment, Application Deployment, Artificial Intelligence, Cloud Hosting, Software Installation, Computer Programming, Authentications, Databases, System Configuration
Beginner · Course · 1 - 3 Months

The Hong Kong University of Science and Technology
Skills you'll gain: Differential Equations, Engineering Analysis, Applied Mathematics, Calculus, Integral Calculus, Numerical Analysis, Mathematical Modeling, Advanced Mathematics, Linear Algebra, Vibrations, Algebra, Electrical Engineering, Derivatives
Beginner · Course · 1 - 3 Months