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.

LearnQuest
Skills you'll gain: Incident Response, Cyber Threat Hunting, Computer Security Incident Management, Incident Management, Intrusion Detection and Prevention, Cyber Threat Intelligence, Continuous Monitoring, Threat Detection, Cyber Security Strategy, Security Strategy, Cloud Security, Disaster Recovery, Threat Management, Firewall, Network Security, Cybersecurity, Cloud Services, AI Security, Network Monitoring, Cloud Management
★ 4.4 (98) · Advanced · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: AI Orchestration, AI Workflows, CrewAI, LangGraph, Agentic Workflows, LLM Application, LangChain, Large Language Modeling, Agentic systems, Generative AI Agents, AI Integrations, Application Deployment, Artificial Intelligence and Machine Learning (AI/ML), Software Architecture, Systems Architecture, Context Management, API Design, Software Design, Data Validation, Memory Management
★ 4.1 (7) · Intermediate · Specialization · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Responsible AI, AI Security, Human Centered Design, Data Ethics, Model Evaluation, Artificial Intelligence, AI literacy, Data Preprocessing
★ 4.2 (57) · Beginner · Course · 1 - 4 Weeks

Universidade Estadual de Campinas
Skills you'll gain: Education Software and Technology, Computational Thinking, Programming Principles, Computer Programming, Computational Logic, Digital pedagogy, Robotics, Computer Programming Tools, Prototyping, Technical Design, Artificial Intelligence, Innovation, 3D Assets
★ 4.9 (108) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Brand Marketing, Branding, Brand Strategy, Brand Awareness, Creative Design, Visual Storytelling, Target Audience, Brand Management, User Feedback, Customer Insights, Storytelling, Growth Strategies, Marketing, Driving engagement, Market Research, Target Market, Promotional Strategies, Social Media, Customer Analysis, Digital Marketing
★ 4.6 (18) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Emerging Technologies, Forecasting, Critical Thinking, Augmented and Virtual Reality (AR/VR), Technology Strategies, Strategic Leadership, Business Transformation, Data-Driven Decision-Making, Conceptual Design, Strategic Decision-Making, Innovation, Business Leadership, Storytelling, Thought Leadership, Business Ethics, Scenario Testing, Decision Making, Artificial Intelligence, Probability & Statistics
★ 4.8 (52) · Beginner · Course · 1 - 4 Weeks

Imperial College London
Skills you'll gain: Innovation, Stakeholder Analysis, Sales Presentation, Health Systems, Stakeholder Communications, Oral Expression, Strategic Communication, Organizational Change, Program Evaluation, Organizational Structure, Stakeholder Engagement, Change Management, Commercialization, Diversity and Inclusion, Consumer Behaviour, Community Health, Public Health, Case Studies
★ 4.7 (71) · Beginner · Course · 1 - 4 Weeks

Board Infinity
★ 4 (69) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: SQL, Query Languages, Generative AI, Maintainability
Beginner · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: OpenAI API, Image Analysis, Multimodal Prompts, Prompt Engineering, Generative AI, AI powered creativity, OpenAI, Image Quality, Computer Vision, Artificial Intelligence, AI literacy
★ 4.7 (24) · Intermediate · Course · 1 - 4 Weeks

Scrimba
Skills you'll gain: Responsive Web Design, Cascading Style Sheets (CSS), HTML and CSS, Front-End Web Development, Web Design
★ 4.9 (27) · Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Community Health, Public Health, Health Disparities, Health Promotion, Health Assessment, Social Determinants Of Health, Public Health and Disease Prevention, Epidemiology, Health Policy, Health Systems, Data Collection, Preventative Care
★ 4.5 (28) · Intermediate · Course · 1 - 4 Weeks