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.

Berklee
Skills you'll gain: Music Theory, Musical Composition, Music, Instrumental Music, Peer Review, Music Performance, Education Software and Technology, World Music, Teaching, Classroom Management, Oral Expression, Storytelling, Cultural Responsiveness, Media Production, Active Listening, Writing, Creativity, Collaboration, Technology Solutions
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Generative AI, Cloud Computing, Cloud API, API Design, Python Programming, Data Persistence
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI Agents, Agentic systems, OpenAI API, AI Workflows, Tool Calling, Prompt Engineering, AI Security, Application Programming Interface (API), Software Architecture, Systems Integration
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Adobe Creative Cloud, Editing, Data Import/Export, Graphic and Visual Design, Color Theory
Beginner · Course · 1 - 3 Months

Skills you'll gain: Performance Analysis, Performance Testing, Performance Measurement, Benchmarking, Data Modeling, Data Processing, Extract, Transform, Load, Data-Driven Decision-Making, Statistical Analysis
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Apache Kafka, Apache Hadoop, JSON
Beginner · Course · 1 - 4 Weeks
University of Colorado Boulder
Skills you'll gain: Electrical Safety, Electrical Systems, High Voltage, Simulations, Electronic Components, Safety Standards, Estimation, Control Systems, Basic Electrical Systems, Thermal Management, Mathematical Modeling, Power Electronics, Electrical Power, Probability, Electrical Engineering, Electronic Systems, Model Evaluation, Simulation and Simulation Software, Engineering Calculations, Machine Learning Methods
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Alex Genadinik
Skills you'll gain: Podcasting, Search Engine Optimization, Brand Awareness, Sales Prospecting, Web Analytics and SEO, Media Relations, Public Relations, Promotional Strategies, Lead Generation
Mixed · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Hardware Design, Security Engineering, Computer Hardware, Hardware Architecture, Threat Modeling, Threat Detection, Cybersecurity, Application Specific Integrated Circuits, Exploit development, Cryptography, Encryption, Exploitation techniques, Technical Design, Emerging Technologies, System Design and Implementation
Mixed · Course · 1 - 3 Months

Skills you'll gain: Plot (Graphics), Swift Programming, Apple iOS, Interactive Data Visualization, Apple Xcode, User Interface (UI), User Interface (UI) Design, Color Theory, Hypertext Markup Language (HTML), Animations, Data Management, Debugging
Intermediate · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Web Content Accessibility Guidelines, HTML and CSS, Cascading Style Sheets (CSS), Responsive Web Design, Browser Compatibility, Hypertext Markup Language (HTML), Web Content, Web Design and Development, Animations, Front-End Web Development, Web Applications, Web Development, Web Design, Typography, Javascript, Software Design, Software Development
Mixed · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: Database Design, SQL, MySQL, Relational Databases, Databases, Data Modeling, Development Environment, PHP (Scripting Language), Software Installation
Intermediate · Course · 1 - 4 Weeks