Object Oriented Design courses can help you learn principles like encapsulation, inheritance, and polymorphism, along with design patterns such as Singleton and Factory. You can build skills in creating reusable code, improving software maintainability, and designing systems that are easier to understand and extend. Many courses introduce tools like UML for modeling, as well as programming languages such as Java and Python, which are commonly used to implement object-oriented concepts in real-world applications.

Skills you'll gain: Responsive Web Design, UI Components, Code Reusability, Web Development Tools, Web Applications, Web Design, Front-End Web Development, Content Management Systems, Full-Stack Web Development, Frontend Integration, Back-End Web Development, Application Deployment, Cloud Deployment, Content Management, Data Management
Intermediate · Course · 1 - 4 Weeks

University of Pittsburgh
Skills you'll gain: Data Storytelling, Interactive Data Visualization, Data Visualization Software, Data Presentation, Spatial Data Analysis, Data Visualization, Datamaps, Tableau Software, Matplotlib, Geospatial Information and Technology, Leaflet (Software), Spatial Analysis, Geospatial Mapping, Plot (Graphics), Seaborn, Visual Storytelling, Data Ethics, Data Mapping, Network Analysis
Build toward a degree
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Email Marketing, Email Automation, Content Performance Analysis, Marketing Automation, AI Personalization, Email Security, Dashboard, Personalized Campaigns, Data-Driven Marketing, Performance Analysis, Campaign Management, Marketing Analytics, Driving engagement, Direct Marketing, Performance Reporting, Cross-Channel Marketing, Responsible AI, Copywriting, Customer Analysis, A/B Testing
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: SQL Server Reporting Services, Business Intelligence, Business Intelligence Software, Business Reporting, Data Visualization, Interactive Data Visualization, Application Deployment, Microsoft SQL Servers, Report Writing, SQL, Role-Based Access Control (RBAC), Data Sharing
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Product Roadmaps, Backlogs, Stakeholder Communications, Business Analysis, Requirements Elicitation, Business Analysis Tools, Stakeholder Management, Business Requirements, Stakeholder Engagement, Project Management Institute (PMI) Methodology, Verification And Validation, Requirements Analysis, Product Management, Requirements Management, Release Management, Milestones (Project Management), Project Management, Communication Planning, Project Planning, Agile Methodology
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Generally Accepted Accounting Principles (GAAP), Bookkeeping, Variance Analysis, General Accounting, Accounting Records, Accounting, Standard Accounting Practices, Audit Planning, Compliance Auditing, Auditing, Accounting Systems, Document Management, Financial Auditing, Ledgers (Accounting), Record Keeping, Auditors Report, Compliance Reporting, Verification And Validation, File Management, Compliance Training
Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Deployment, Responsible AI, No-Code Development, Business Metrics, Data Ethics, AI Personalization, AI Integrations, Return On Investment, Customer experience improvement, Language Interpretation, Translation, and Studies, Performance Measurement, Key Performance Indicators (KPIs), Cross Platform Development, Continuous Improvement Process, Natural Language Processing, User Feedback, Systems Integration, System Design and Implementation, Machine Learning Algorithms, Unsupervised Learning
Beginner · Course · 1 - 4 Weeks

HubSpot Academy
Skills you'll gain: Lead Generation, HubSpot CRM, Sales Management, Customer Relationship Building, Prospecting and Qualification, Sales Development, Sales Process, Customer Relationship Management (CRM) Software, Dashboard, Project Design, Project Implementation, Campaign Management, Service Level Agreement, Management Reporting, Workflow Management, Prioritization, Performance Reporting, Email Marketing, Performance Metric, Key Performance Indicators (KPIs)
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Video Game Development, Game Design, Unity Engine, Unreal Engine, Program Development, No-Code Development, User Interface (UI)
Beginner · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Search Engine Optimization, Web Analytics and SEO, Web Presence
Mixed · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Claude Code, Vibe coding, Full-Stack Web Development, Anthropic Claude, No-Code Development, Application Development, Web Development Tools, Frontend Integration, Web Applications, JavaScript Frameworks, Mobile Development Tools, Development Environment, Application Deployment, Cloud Deployment, AI Workflows, ChatGPT, React.js, Debugging, Prompt Engineering, Artificial Intelligence
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Ansible, IT Automation, Enterprise Architecture, DevSecOps, CI/CD, Automation, Continuous Integration, Hardening, Enterprise Security, Devops Tools, Infrastructure as Code (IaC), Patch Management, Cloud Infrastructure, Vulnerability Scanning, Vulnerability Management, Cloud-Based Integration, Scalability
Beginner · Course · 1 - 4 Weeks