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.

Packt
Skills you'll gain: Ruby on Rails, Model View Controller, Ruby (Programming Language), Object-Relational Mapping, Test Automation, Restful API, Unit Testing, Application Deployment, Web Applications, Web Development, Cloud Deployment, Authentications, Development Environment, Data Modeling, Relational Databases, Data Validation
Beginner · Course · 1 - 4 Weeks

Creo Incubator
Skills you'll gain: Go To Market Strategy, Ideation, Growth Strategies, Entrepreneurial Finance, Entrepreneurship, Branding, Market Share, Market Analysis, Brand Strategy, Marketing Strategies, Financial Forecasting, Product Marketing, Creative Problem-Solving, Business Valuation, Marketing Planning, Sales, Fundraising, Business Planning, Mergers & Acquisitions, Critical Thinking and Problem Solving
Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Google Analytics, Data Storytelling, Data Presentation, Data Literacy, Marketing Analytics, Web Analytics, Data Validation, Dashboard Creation, Data-Driven Marketing, Conversion Funnel Analysis, Data-Driven Decision-Making, Predictive Analytics, Verification And Validation, Information Privacy, Data Collection
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Database Design, SQL, Relational Databases, Database Management, Performance Tuning, Databases, Database Administration, Database Theory, Query Languages
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: TCP/IP, Network Protocols, Network Troubleshooting, General Networking, Network Planning And Design, Computer Networking, Network Analysis, Computational Logic
Intermediate · Course · 1 - 3 Months

Skills you'll gain: 3D Assets, 3D Modeling, Unreal Engine, Video Game Development, Animation and Game Design, Computer Graphics, Graphics Software, Editing, Data Import/Export, Model Optimization
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Photography, Photo Editing, Post-Production, Photo/Video Production and Technology, Adobe Photoshop, Color Theory, Image Quality, Visual Storytelling, Cinematography, Adobe Creative Cloud, Editing, Control Panels, Creative Design, Adaptability, Planning, Communication Strategies, Interpersonal Communications, Creativity
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Virtual Local Area Network (VLAN), Network Planning And Design, Network Troubleshooting, Internet Of Things, Network Architecture, Network Security, Network Engineering, Network Protocols, Virtual Private Networks (VPN), Network Administration, Computer Networking, Routing Protocols, System Configuration, Network Monitoring, Local Area Networks, Networking Hardware, Network Infrastructure, Network Routers, General Networking, Network Switches
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Object Oriented Programming (OOP), Matplotlib, Plot (Graphics), Seaborn, File I/O, Data Visualization Software, NumPy, Python Programming, Code Reusability, Pandas (Python Package), Data Analysis, Program Development, Data Import/Export, Data Processing, JSON, Package and Software Management, Data Manipulation
Intermediate · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Microsoft Azure, Azure Active Directory, Virtual Machines, Azure DevOps, Azure DevOps Pipelines, Cloud Computing, Cloud Services, DevOps, Cloud Infrastructure, Data Integration, Infrastructure As A Service (IaaS), Cloud Platforms, Virtualization and Virtual Machines, Cloud Computing Architecture, Application Development, Cloud Technologies, Identity and Access Management, Virtual Networking, Devops Tools, Network Planning And Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Keyword Research, Search Engine Optimization, Target Audience, Content Optimization, Blogs, Web Analytics and SEO, Content Strategy, Web Content, Social Media Marketing
Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: DeepSeek API, Deepseek, Retrieval-Augmented Generation, AI Integrations, Model Deployment, Fine-tuning, Make.com, Generative Model Architectures, Generative AI Agents, LLM Application, Cloud Deployment, Model Training, Embeddings, Software Documentation, Key Management
Beginner · Course · 1 - 3 Months