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.

AI CERTs
Skills you'll gain: Responsible AI, Agentic Workflows, Risking, Generative AI Agents, AI Enablement, Artificial Intelligence and Machine Learning (AI/ML), Power BI, AI Workflows, Accounting and Finance Software, Regulatory Compliance, Automation, Financial Data, Wealth Management, Compliance Management, Generative AI, Financial Forecasting, Data Processing, Finance, Workflow Management, General Finance
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Relational Databases, Data Management, Database Design, SQL, Databases, Database Administration, Query Languages, Database Architecture and Administration, Data Integrity, Data Manipulation
Intermediate · Guided Project · Less Than 2 Hours

Real Madrid Graduate School Universidad Europea
Skills you'll gain: Sports Medicine, Coaching, Athletic Training, Physical Stamina, Exercise Science, Performance Analysis, Nutrition and Diet, Nutrition Education, Leadership, Automation, Teamwork, Performance Reporting, Injury Prevention, AI Personalization, Collaboration, Innovation, Data Management, Technology Solutions, Health Technology, Communication
Beginner · Specialization · 3 - 6 Months

Northwestern University
Skills you'll gain: Sales, Sales Presentation, Selling Techniques, Sales Strategy, Meeting Facilitation, Sales Process, Overcoming Objections, Team Oriented, Storytelling, Constructive Feedback, Verbal Communication Skills, Communication
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Penetration Testing, Exploitation techniques, Cyber Security Assessment, Unix, Vulnerability Assessments, Unix Commands, Unix Shell, System Programming, Shell Script, Linux, Debugging, Linux Commands, Computer Architecture, Authentications
Build toward a degree
Intermediate · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: DeepSeek API, Deepseek, Retrieval-Augmented Generation, Model Deployment, AI Enablement, Make.com, Generative Model Architectures, LLM Application, Cloud Deployment, Embeddings, Software Documentation, Unit Testing, Key Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Programming Principles, Java, Data Structures, Program Development, Eclipse (Software), Object Oriented Programming (OOP), Computer Programming, Debugging, Application Programming Interface (API), Database Application
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Frontend Performance, Restful API
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Education Software and Technology, Learning Management Systems, Digital pedagogy, Teamwork, Collaboration, Classroom Management, Creative Problem-Solving, Innovation, Creativity, Motivational Skills
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Unity Engine, User Interface (UI), Game Design, Android (Operating System), C# (Programming Language), 3D Assets, Video Game Development, Application Deployment, Virtual Environment, Augmented and Virtual Reality (AR/VR), Software Installation, Development Environment, Animations
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Convolutional Neural Networks, Tensorflow, Data Collection, Image Analysis, Artificial Neural Networks, Deep Learning, Computer Vision, Model Evaluation, Google Cloud Platform, Cloud Computing, Scientific Visualization
Beginner · Project · Less Than 2 Hours

Skills you'll gain: UI Components, Web Components, Responsive Web Design, Application Deployment, Database Management, Databases, Web Design and Development, JavaScript Frameworks, Web Development Tools, Authentications, Application Development, Email Automation, Restful API, Web Design, Front-End Web Development, OpenAI API, TypeScript, Payment Systems, Cascading Style Sheets (CSS), User Interface (UI)
Intermediate · Specialization · 1 - 3 Months