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.

Coursera
Skills you'll gain: Product Demonstration, Web Content, Video Production, Presentations, Marketing Materials, Graphic Design, Data Visualization, Company, Product, and Service Knowledge, Video Editing, Web Design, Team Oriented, Storytelling, Content Marketing
Intermediate · Guided Project · Less Than 2 Hours
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, Failure Analysis, Probability, Electrical Engineering, Electronic Systems, Model Evaluation, Simulation and Simulation Software, Machine Learning Methods
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: User Story, Agile Methodology, Version Control, Persona (User Experience), Kanban Principles
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Accounting Software, Data Validation, QuickBooks (Accounting Software), Expense Management, Accounting Records, Data Entry, Verification And Validation, Financial Reporting, Productivity Software, Spreadsheet Software, Microsoft Excel
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Sales Presentation, Influencing, Persuasive Communication, Intercultural Competence, Virtual Teams, Storytelling, Behavioral Economics, Business Research, Value Propositions, Active Listening, Market Research, Empathy & Emotional Intelligence, Sales Pipelines, Marketing Psychology, Digital Communications, Collaboration, Customer Relationship Management (CRM) Software, Stakeholder Management, Strategic Communication, Cross-Functional Collaboration
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Service Management, Information Technology Infrastructure Library, IT Service Management, Systems Integration, Control Objectives for Information and Related Technology (COBIT), Service Level Agreement, Supplier Relationship Management, Organizational Structure, Cross-Functional Collaboration, Governance, Process Improvement and Optimization, Risk Management, Continuous Improvement Process, Organizational Change, Lean Methodologies
Beginner · Course · 1 - 3 Months

Skills you'll gain: Agile Software Development, Scrum (Software Development), Agile Methodology, Kanban Principles, Agile Product Development, Agile Project Management, User Story, Sprint Retrospectives, Sprint Planning, Workflow Management, Performance Metric, Team Oriented, Team Performance Management, Backlogs, Team Building, Performance Measurement, Lean Methodologies, Plan Execution, Prioritization, Estimation
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Typography, Cascading Style Sheets (CSS), Web Design, Web Design and Development, Web Development Tools, Browser Compatibility, Application Deployment, Front-End Web Development, Web Development, Animations, Development Environment, UI Components, Usability, Javascript, Frontend Performance, Maintainability, User Interface (UI)
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Vulnerability Assessments, Vulnerability Management, Vulnerability Scanning, Cyber Security Assessment, Hardening, Threat Management, Patch Management, Cyber Risk, Continuous Monitoring, Threat Detection, Cyber Threat Hunting, Application Security, Security Controls, Cyber Attacks, Cyber Engineering, Cyber Security Policies, Network Security, Cyber Security Strategy, Network Engineering, Web Applications
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Field-Programmable Gate Array (FPGA), Hardware Design, Electronic Hardware, Program Development, Electronic Systems, System Design and Implementation, Eclipse (Software), Embedded Software, Embedded Systems, Development Environment, Software Development, Integrated Development Environments, Software Development Tools, Engineering Documentation, Build Tools, Laboratory Experience, Laboratory Reports, Laboratory Testing
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Adobe Firefly, Generative AI, Photo Editing, Multimedia, Prompt Engineering, Content Creation, ChatGPT, Marketing Materials, Digital Media Strategy, Video Editing, Logo Design, Automation, E-Commerce
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: AI Workflows, ChatGPT, No-Code Development, Model Deployment, Self Service Technologies, Application Deployment, IBM Cloud, Prompt Engineering, LLM Application, Generative AI, Customer Service, Context Management, Operational Efficiency, WordPress, Scalability, Data Persistence
Beginner · Course · 1 - 3 Months