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.

Northeastern University
Skills you'll gain: Data Warehousing, Extract, Transform, Load, Data Integration, Data Modeling, Data Architecture, Star Schema, Data Governance, Database Design, Data Management, SQL, Relational Databases, Business Intelligence, Data Mining, Data Quality, Data Analysis, Systems Design
Mixed · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Prototyping, Product Testing, Mockups, Product Development, Development Testing, Manufacturing Processes
★ 4.8 (24) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), User Experience Design, UI Components, Front-End Web Development, User Interface (UI) Design, User Interface (UI), Web Design, React.js, Responsive Web Design, User Centered Design, User Experience, Design Elements And Principles, Javascript
★ 1.7 (6) · Intermediate · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Node.JS, Server Side, MongoDB, Back-End Web Development, Restful API, Full-Stack Web Development, Web Applications, Database Development, Frontend Integration, Web Development, JavaScript Frameworks, Database Management, Secure Coding, Application Programming Interface (API), Software Architecture, NoSQL, API Design, Authentications, Performance Tuning, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Cloud Platform, Model Optimization, AI Workflows, Cloud Computing Architecture, Performance Tuning, Interoperability, Product Demonstration, Benchmarking, Hardware Architecture, Computer Architecture
★ 4.5 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Node.JS, JavaScript Frameworks, Web Frameworks, Authentications, MongoDB, Postman API Platform, Restful API, Server Side, Middleware, JSON, Application Programming Interface (API), Web Development Tools, Web Applications, Javascript, Back-End Web Development, API Testing, NoSQL
★ 4.9 (22) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Visual Storytelling, AI powered creativity, Color Theory, Style Guides, Generative AI, Layout Design, Prompt Engineering Tools, Creativity, ChatGPT, Creative Design, Aesthetics, Design Elements And Principles, Image Analysis
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Agentic systems, Generative AI Agents, AI literacy, AI Workflows, Artificial Intelligence and Machine Learning (AI/ML), AI powered creativity, Emerging Technologies, Business Ethics, Social Impact, Problem Solving, Analysis, Business Planning
Beginner · Course · 1 - 3 Months

Skills you'll gain: Marketing Budgets, Social Media Content, Photo/Video Production and Technology, Collaborative Software, Social Media Marketing, Content Creation, Video Editing, Social Media, Graphical Tools, Content Marketing, Marketing, Graphic and Visual Design Software, Graphic Design, Photo Editing
★ 3.9 (17) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Persona Development, Experience Design, User Experience, User Centered Design, User Research, Design and Product, Customer Analysis, Customer Insights, Collaborative Software, Diversity and Inclusion, Product Development
★ 4.4 (22) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: UI Components, Game Design, Video Game Development, Unreal Engine, User Interface (UI), User Interface (UI) Design, Interactive Design, Animation and Game Design, Data Persistence, Interaction Design, Virtual Environment, Computer Graphics, 3D Assets, AI Workflows, Computer Graphic Techniques, Visualization (Computer Graphics), Scripting, Artificial Intelligence, User Flows, User Interface and User Experience (UI/UX) Design
★ 5 (14) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Artificial Intelligence, Agentic systems, Machine Learning Algorithms, Bayesian Network, Applied Machine Learning, Computational Logic, Machine Learning, Unsupervised Learning, Agentic Workflows, Bayesian Statistics, Artificial Neural Networks, Reinforcement Learning, Decision Intelligence, Markov Model, Algorithms, Programming Principles, Probability & Statistics
★ 5 (10) · Mixed · Course · 1 - 3 Months