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: Test Driven Development (TDD), Unit Testing, Test Planning, Debugging, Browser Compatibility, Performance Testing, Security Testing, Software Testing, System Testing, Test Script Development, Behavior-Driven Development, API Testing, Code Coverage, Integration Testing, Test Case, Test Automation, Test Tools, Development Environment, Code Review, Continuous Delivery
Intermediate · Specialization · 1 - 3 Months

University of Michigan
Skills you'll gain: Writing, Storytelling, Editing, Detail Oriented, Resourcefulness, Decision Making, Creativity, Communication Strategies, Professionalism, Time Management
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: File I/O, Data Import/Export, Python Programming, Functional Design, Programming Principles, Data Structures, Debugging
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Tableau Software, Dashboard, Market Data, Data-Driven Decision-Making, Data Presentation, Feature Engineering, Analytical Skills, Data Ethics, Data Visualization, Exploratory Data Analysis, Data Visualization Software, Case Studies, Business Intelligence, Business Analytics, Financial Market, Interactive Data Visualization, Data Analysis, Financial Data, Financial Analysis
Beginner · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Email Automation, Email Marketing, Target Audience, Copywriting, Marketing Automation, Marketing Materials, Customer Analysis, Campaign Management, HubSpot CRM, User Experience, Customer Engagement, Workflow Management, Marketing Communications, Content Creation, Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Video Production
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Generative AI Agents, Debugging, TypeScript, Agentic systems, AI Workflows, Node.JS, OpenAI API, Generative AI, Program Development, Artificial Intelligence, LLM Application, Programming Principles, Maintainability, Development Environment, Prompt Engineering, Application Frameworks, Javascript, Large Language Modeling, File Systems
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Preprocessing, Applied Machine Learning, Feature Engineering, Digital Signal Processing, Data Transformation, Model Evaluation, Time Series Analysis and Forecasting, Data Pipelines, Data Manipulation, Data Wrangling, System Design and Implementation, NumPy
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Shiny (R Package), Cloud Deployment, Interactive Data Visualization, Application Deployment, Performance Tuning, Data Visualization Software, Web Applications, Application Development, R Programming, Dashboard, Exploratory Data Analysis, User Interface (UI), User Interface (UI) Design, Data Import/Export
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: AI Orchestration, AI Workflows, LangGraph, Enterprise Application Management, Generative AI Agents, Agentic systems, Retrieval-Augmented Generation, Scalability, Secure Coding, Context Management, Performance Tuning, Vector Databases, Embeddings, Debugging, Data Persistence
Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Presentations, Microsoft PowerPoint, Microsoft Office, Microsoft 365, Technical Communication, Productivity Software, Graphics Software, Public Speaking, Graphic and Visual Design, Communication, User Interface (UI), Organizational Skills, Professionalism, Productivity
Mixed · Course · 1 - 3 Months

Lund University
Skills you'll gain: Sustainable Development, Climate Change Adaptation, Sustainable Design, Land Development, Water Sustainability, Sustainable Technologies, Community Development, Governance, Economic Development, Socioeconomics, Environment, Sustainable Business, Social Impact, Systems Thinking, Environmental Issue, Environmental Science, Climate Change Mitigation, Case Studies, Energy and Utilities, Water Resources
Beginner · Specialization · 3 - 6 Months