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.

Skills you'll gain: Open Web Application Security Project (OWASP), Metasploit, Penetration Testing, Vulnerability Assessments, Exploit development, Vulnerability Scanning, Cyber Security Assessment, Bash (Scripting Language), Exploitation techniques, Security Testing, Command-Line Interface, Cyber Operations, Scripting, Linux, Linux Commands, Cybersecurity, Cyber Threat Hunting, Threat Detection, Network Security, Unix Commands
Intermediate · Specialization · 1 - 3 Months

University of California San Diego
Skills you'll gain: Bioinformatics, Molecular Biology, Data Analysis Software, Molecular, Cellular, and Microbiology, Biology, Algorithms, Microbiology, Statistical Methods, Python Programming
★ 4.3 (1.1K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, grep, Unix, Linux Commands, Linux, Unix Commands, Scripting, Linux Servers, Secure Coding, Scripting Languages, Command-Line Interface, Maintainability, Hardening, Debugging, Linux Administration, Code Reusability, Windows PowerShell, Mac OS
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Campaign Planning, Customer experience strategy (CX), Experimentation, Customer experience improvement, Customer Insights, Trend Analysis, Customer Engagement, Customer Analysis, Customer Communications Management, Customer Data Management, Culture Transformation, Customer Retention, Customer Relationship Management, Organizational Development, Customer Service, Organizational Change, Performance Measurement, Customer Acquisition Management, Customer Support, Leadership Development
Intermediate · Course · 1 - 3 Months

Atchison Academy
Skills you'll gain: Cloud Computing Architecture, Risk Management, Risk Management Framework, Cloud Platforms, Risk Modeling, Cloud Infrastructure, Operational Risk, Cloud Computing, Cloud-Native Computing, Scalability, Software Architecture, Risk Analysis, Systems Architecture, Enterprise Architecture, Infrastructure Architecture, Service Level, System Monitoring, Incident Response, API Design, Cost Management
Advanced · Specialization · 3 - 6 Months

Duke University
Skills you'll gain: Community Organizing, Climate Change Adaptation, Health Disparities, Health Equity, Community Development, Climate Change Programs, Environmental Issue, Social Sciences, Community and Social Work, Community Outreach, Advocacy, Social Determinants Of Health, Health Education, Community Health, Climate Change Mitigation, Health Care, Public Health, International Relations, Environmental Policy, Environmental Science
★ 4.9 (34) · Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Customer Complaint Resolution, Customer Service, De-escalation Techniques, Service Recovery, Customer Relationship Building, Active Listening, Customer Support, Overcoming Objections, Customer experience improvement, Customer Engagement, Verbal Communication Skills, Customer Retention, Expectation Management, Customer Relationship Management, Root Cause Analysis, Needs Assessment, Customer Insights, Trustworthiness
Intermediate · Course · 1 - 3 Months

Sage Publications
Skills you'll gain: Human Resource Management, Human Resources Management and Planning, Human Resources, Talent Recruitment, Human Capital, Diversity Equity and Inclusion Initiatives, HR Tech, Human Resource Strategy, People Analytics, Employee Retention, Recruitment, Human Relations Movement, Talent Management, Employee Relations, Human Resource Policies, Performance Appraisal, Compensation Management, Talent Acquisition, Employee Engagement, Business Development
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Virtual Machines, OpenShift, VMware ESX Servers, Virtualization and Virtual Machines, Virtualization, Virtual Networking, Kubernetes, Ansible, Containerization, Data Migration, YAML, Data Storage, Data Mapping
Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Instructional and Curriculum Design, Needs Assessment, Education Software and Technology, Instructional Design, Education and Training, Diversity and Inclusion, Learning Theory, Training and Development, Instructional Strategies, People Development, Educational Materials, Pedagogy, Curriculum Development, Systems Analysis, Job Analysis, Process Analysis, Adult Education, Emerging Technologies, Data Ethics, Change Management
★ 4.5 (3K) · Beginner · Specialization · 3 - 6 Months

Sage Publications
Skills you'll gain: Sales Management, Supply Chain Planning, Sales Operations, Supply Chain, Supply Chain Systems, B2B Sales, Sales Strategy, Operations Management, Supply Management, Logistics Management, Consumer Behaviour, Supply Chain Management, Sales, Retail Sales, Conflict Management, Salesforce, Retail Store Operations, Cross-Channel Marketing, Team Leadership, Design
Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Overcoming Objections, Closing (Sales), Price Negotiation, Selling Techniques, Consultative Selling, Personalized Service, Tenacity, Persuasive Communication, Persistence, Sales, Rapport Building, Sales Strategy, Resilience, Empathy, Prospecting and Qualification, Value Propositions, Negotiation, Goal Setting, Needs Assessment
Beginner · Course · 1 - 3 Months