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.

Scrimba
Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Interactive Design, Cascading Style Sheets (CSS), Web Content Accessibility Guidelines, Usability, User Interface (UI) Design, UI Components, Browser Compatibility, Web Development
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: AWS Kinesis, Amazon DynamoDB, Amazon S3, Data Pipelines, AWS SageMaker, Real Time Data, Amazon CloudWatch, AWS Identity and Access Management (IAM), Cloud Storage, Apache Spark, Dashboard, Amazon Web Services, Apache Hive, Interactive Data Visualization, Apache Hadoop, Data Visualization Software, Data Processing, Extract, Transform, Load, Data Storage, Database Management Systems
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Facebook, Social Media Campaigns, Marketing Design, Marketing Materials, Social Media, Social Media Content, Graphic Design, Promotional Materials, Content Creation, Advertising, Marketing, Online Advertising
Intermediate · Guided Project · Less Than 2 Hours

Maven Analytics
Skills you'll gain: Unsupervised Learning, Model Evaluation, Regression Analysis, Exploratory Data Analysis, Applied Machine Learning, Time Series Analysis and Forecasting, Data Analysis, Classification Algorithms, Statistical Analysis, Data Science, Data Preprocessing, Data Mining, Machine Learning, Predictive Modeling, Machine Learning Algorithms, Customer Analysis, Supervised Learning, Histogram, Data Quality, Business Intelligence
Beginner · Course · 1 - 3 Months

Niel Asher Education
Skills you'll gain: Exercise Therapy, Athletic Training, Manual Therapy, Physical Therapy, Health And Wellness Coaching, Physiology, Human Musculoskeletal System, Occupational Therapy, Pain Management, Coordination, Neurology, Science and Research, Planning
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: AI Workflows, Artificial Intelligence and Machine Learning (AI/ML), Agentic systems, System Design and Implementation, Unified Modeling Language, Performance Metric, Performance Measurement, Requirements Analysis, Performance Analysis, Model Evaluation, Prototyping, Stakeholder Communications, Simulation and Simulation Software, Benchmarking
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Data Science, Data Literacy, Project Design, Data Analysis, Data Management, Data Presentation, Data-Driven Decision-Making, Business Analytics, Performance Metric, Machine Learning, Statistical Inference
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Monitoring, Network Administration, Network Security, Firewall, Ansible, System Monitoring, Network Protocols, Security Controls, Software-Defined Networking, Puppet (Configuration Management Tool), Chef (Configuration Management Tool), Network Switches, Real Time Data, Authentications, Scripting, JSON, Automation, Application Programming Interface (API)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Java Programming, Development Environment, Java, Integrated Development Environments, Encryption, Cryptography, Virtualization and Virtual Machines, Performance Tuning, Application Programming Interface (API), Object Oriented Programming (OOP), Scalability
Intermediate · Course · 1 - 3 Months
Skills you'll gain: Inside Sales, Sales Process, Generative AI Agents, Sales Strategy, Email Automation, AI Personalization, Sales Management, HubSpot CRM, Sales Enablement, Sales, Sales Training, Sales Prospecting, ChatGPT, Anthropic Claude, Customer Relationship Management (CRM) Software, Customer Communications Management, Customer Engagement, Campaign Management, Automation, Analytics
Intermediate · Course · 1 - 4 Weeks

Dassault Systèmes
Skills you'll gain: SolidWorks (CAD), Computer-Aided Design, Engineering Drawings, Technical Drawing, 3D Modeling, Mechanical Engineering
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Presentation, Verbal Communication Skills, Presentations, Dashboard, Infographics, Storytelling, Data Visualization Software, Persuasive Communication, Communication, Non-Verbal Communication, Target Audience, Decision Making
Intermediate · Course · 3 - 6 Months