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.

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Interactive Design, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Usability, User Interface (UI) Design, UI Components, Browser Compatibility, Web Development
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Agentic systems, Responsible AI, Data Pipelines, Law, Regulation, and Compliance, Data Ethics, Model Evaluation, Information Privacy, Data Processing, AI Workflows, Data Analysis, No-Code Development, Analytical Skills, Machine Learning, Artificial Intelligence, Real Time Data, Ethical Standards And Conduct, Machine Learning Algorithms, Data Collection
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Ideation, Diagram Design, Brainstorming, Team Building, Productivity Software, Data Visualization, Organizational Skills
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Adobe Illustrator, Logo Design, Adobe Creative Cloud, Graphic Design, Graphic and Visual Design, Visualization (Computer Graphics), Graphical Tools, Design Elements And Principles, Creative Design
Beginner · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Browser Compatibility, Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), HTML and CSS, Web Design, User Interface (UI), Responsive Web Design, Usability, Typography, Javascript
Mixed · Course · 1 - 3 Months

Radio y Televisión Española
Skills you'll gain: digital literacy, Research, Investigation, Social Network Analysis, Trend Analysis, Verification And Validation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Development Environment, Web Development Tools, Virtual Machines, Software Testing, Software Development Tools, Data Storage, Debugging, Javascript, Cryptographic Protocols, Event-Driven Programming, System Design and Implementation, Transaction Processing, Payment Systems
Advanced · Course · 1 - 3 Months

Fundação Instituto de Administração
Skills you'll gain: Customer Success Management, Customer Retention, Customer experience strategy (CX), Customer Engagement, Customer Relationship Management, Customer Insights, Target Audience, Organizational Structure, Key Performance Indicators (KPIs), Business Metrics, Value Propositions
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Video Editing, Photo/Video Production and Technology, Post-Production, Motion Graphics, Video Production, File Management, Storytelling, Content Creation, Apple software proficiency, Timelines
Beginner · Course · 1 - 3 Months

Skills you'll gain: Ruby (Programming Language), Debugging, Scripting Languages, Data Structures, Scripting, Program Development, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Unreal Engine, 3D Assets, 3D Modeling, Computer Graphics, Animation and Game Design, Image Quality, Performance Tuning
Intermediate · Course · 3 - 6 Months

Starweaver
Skills you'll gain: Responsible AI, AI Security, LLM Application, Threat Detection, Threat Modeling, Cyber Threat Intelligence, Cyber Threat Hunting, Generative AI Agents, Agentic Workflows, Agentic systems, Incident Response, Cyber Governance, Cyber Security Strategy, Data Ethics, Cyber Operations, AI Orchestration, Cybersecurity, Cyber Security Assessment, Risk Mitigation, Technology Strategies
Intermediate · Course · 1 - 3 Months