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: Canva (Software), Logo Design, Marketing Design, Graphic Design, Color Theory, Graphic and Visual Design, Marketing Collateral, Content Creation, Marketing, Business Communication, Entrepreneurship
Beginner · Guided Project · Less Than 2 Hours

Cisco Learning and Certifications
Skills you'll gain: Network Troubleshooting, Hybrid Cloud Computing, Telecommunications, Collaboration, Dynamic Host Configuration Protocol (DHCP), Wide Area Networks, User Provisioning, Virtual Private Networks (VPN), Network Support, Cloud Deployment, Cloud-Based Integration, Firewall, Network Performance Management, Network Administration, Session Initiation Protocols, System Configuration, Network Monitoring, Identity and Access Management, Administration, Product Management
Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: ASP.NET, Data Migration, Configuration Management, Data Validation, Database Application, Middleware, Debugging, Back-End Web Development, Database Management, Data Modeling, Restful API, Maintainability, Dependency Analysis, Performance Tuning, Software Design Patterns
Intermediate · Course · 1 - 3 Months

EDUCBA
Skills you'll gain: Performance Tuning, Microsoft Azure, Database Administration, Scalability, Relational Databases, Microsoft SQL Servers, Database Architecture and Administration, Database Management, Database Systems, Operational Databases, Data Migration, Transact-SQL, Stored Procedure, Cloud Security, Cloud Deployment, Disaster Recovery, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Import/Export, Data Visualization Software, Data Visualization, Interactive Data Visualization, Histogram, Data Transformation, Data Processing, Apache Kafka, JSON, MySQL, SQL
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Cloud Platform, Firewall, Virtual Networking, SAP Applications, Cloud Infrastructure, Cloud Services, Network Planning And Design, Cloud Deployment
Beginner · Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Systems Design, Computational Logic, Verification And Validation, Software Systems, Theoretical Computer Science, Simulations, Programming Principles, Graph Theory, Model Evaluation, Hardware Architecture, Algorithms, Logical Reasoning
Beginner · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Photo Editing, Adobe Photoshop, Image Quality, File Management, Adobe Creative Cloud, Photography, Graphics Software, Design Elements And Principles, Editing, Graphic and Visual Design Software, Color Matching, Computer Graphic Techniques, Productivity Software, User Interface (UI)
Mixed · Course · 1 - 3 Months

Skills you'll gain: Business Strategy, Process Optimization, Operational Analysis, Contingency Planning, Business Process Reengineering, Business Planning, Process Improvement, Organizational Strategy, Strategic Decision-Making, Competitive Analysis, Strategic Leadership, Business Analysis, Organizational Effectiveness, Operational Efficiency, Program Evaluation, Performance Measurement, Business Operations, Portfolio Management, Operations Management, Business
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Model Deployment, Data Management, Data Pipelines, Statistical Modeling
Intermediate · Course · 1 - 4 Weeks

Minnesota State University, Mankato
Skills you'll gain: Technical Writing, Writing and Editing, Technical Documentation, Editing, Technical Communication, Web Content Accessibility Guidelines, Style Guides, Proofreading, Usability, Functional Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: React.js, JavaScript Frameworks, Javascript and jQuery, Web Development Tools, Javascript, Software Design Patterns, Web Development, Application Development, Mobile Development
Advanced · Guided Project · Less Than 2 Hours