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: Solution Architecture, Software Architecture, Cloud Computing Architecture, Enterprise Architecture, Amazon Web Services, Application Security, Identity and Access Management, Cloud Deployment, Network Architecture, Cloud Applications, Data Migration, Network Security, Scalability, Disaster Recovery
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Canva (Software), Social Media Content, Social Media Marketing, Social Media, Video Editing, Social Media Strategy, Graphic and Visual Design Software, Content Creation, Video Production, Marketing, Digital Marketing
Beginner · Guided Project · Less Than 2 Hours

Simplilearn
Skills you'll gain: Keyword Research, Search Engine Optimization, Web Analytics and SEO, Competitive Analysis, Performance Analysis, Performance Metric, Performance Management, Analytics
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Waste Minimization, Environmental Social And Corporate Governance (ESG), Sustainable Technologies, Environmental Regulations, Environmental Monitoring, Sustainable Design, Sustainability Reporting, Corporate Sustainability, Compliance Management, Regulatory Compliance, Manufacturing and Production, Manufacturing Processes, Energy and Utilities, Operational Efficiency, Materials science, AI Enablement, Internet Of Things, Climate Change Mitigation, Capital Markets, Innovation
Intermediate · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Database Design, Database Theory, Database Management Systems, Data Modeling, Metadata Management, Databases, Data Management, Relational Databases, Unified Modeling Language, Data Governance, Enterprise Modeling, Data Integrity, Data Quality
Build toward a degree
Mixed · Course · 1 - 3 Months

Packt
Skills you'll gain: Node.JS, File I/O, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Lead Generation, Search Engine Optimization, Account Strategy, Keyword Research, Outbound Calls, Sales Prospecting, Upselling, Web Analytics and SEO, B2B Sales, Sales Strategy, Marketing Strategies, Content Marketing, Target Market, Content Creation
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: LangGraph, AI Orchestration, LangChain, LLM Application, Agentic Workflows, Generative AI Agents, MLOps (Machine Learning Operations), Context Management, Distributed Computing, Software Design Patterns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apple Xcode, Apple iOS, UI Components, Mobile Development, User Interface (UI) Design, Swift Programming, Responsive Web Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Visualization (Computer Graphics), Cascading Style Sheets (CSS), Computer Graphics, Web Components, Animations, Typography, Semantic Web, Web Content Accessibility Guidelines, Scalability
Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Content Performance Analysis, Web Analytics and SEO, Search Engine Optimization, Keyword Research, Web Analytics, Marketing Analytics, Digital Marketing, Web Content, Semantic Web, Content Management Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Security
Intermediate · Course · 1 - 4 Weeks