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: Node.JS, Scalability, Authentications, JSON, Authorization (Computing), Web Development Tools, Web Applications, Web Development, Server Side, Secure Coding, JavaScript Frameworks, Back-End Web Development, Application Frameworks, Javascript, Restful API, Development Environment, Event-Driven Programming, Operating Systems, Email Automation, Integrated Development Environments
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Routing Protocols, Network Protocols, Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), Network Infrastructure, TCP/IP, Border Gateway Protocol, Network Routers, Computer Networking, Wireless Networks, Network Routing, Network Troubleshooting, Network Switches, Local Area Networks
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Extensible Markup Language (XML), Ajax, Extensible Languages and XML, Web Design, Web Design and Development, Java Platform Enterprise Edition (J2EE), HTML and CSS, jQuery, Cascading Style Sheets (CSS), Data Validation, Web Applications, Responsive Web Design, Scripting Languages, Scripting, Web Development, Javascript and jQuery, Android Development, Hypertext Markup Language (HTML), Visualization (Computer Graphics), Java
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Unity Engine, Game Design, Animation and Game Design, Video Game Development, Virtual Environment, Animations, User Interface (UI), UI Components, User Interface (UI) Design, Program Development, Debugging, Scripting, C# (Programming Language)
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Cross Selling, Retail Sales, Product Demonstration, Personalized Service, Sales Training, Sales Strategy, Customer experience improvement, Customer Service, Team Building, Team Oriented, Customer Engagement, Customer Complaint Resolution
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Restful API, Web Applications, Cascading Style Sheets (CSS), Application Programming Interface (API), Web Services, HTML and CSS, Back-End Web Development, JSON, Frontend Integration, Javascript, Software Development
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Marketing Budgets, Competitive Analysis, Data-Driven Marketing, Customer Acquisition Management, Online Advertising, Digital Media Strategy, Digital Marketing, Marketing Strategies, Campaign Management, Social Media Campaigns, Digital Marketing Campaigns, Customer Engagement, Customer Retention, Digital Advertising, Marketing Analytics, Digital Analysis, Journey Mapping, Marketing Planning, Marketing, Advertising Campaigns
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Brand Awareness, Market Research, Strategic Marketing, Branding, Brand Marketing, User Feedback, Brand Strategy, Marketing, Brand Management, Research, User Research
Beginner · Guided Project · Less Than 2 Hours

Arizona State University
Skills you'll gain: Sales Presentation, Sales Presentations, Oral Expression, Product Marketing, Marketing Materials, Verbal Communication Skills, Presentations, Marketing, Product Promotion, Persuasive Communication, Communication, Advertising, Marketing Communications, Business Writing, Influencing, Graphic Design, Sales, Business Communication, Concision, Data Visualization
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Prompt Engineering, Responsive Web Design, OpenAI API, HTML and CSS, Cascading Style Sheets (CSS), Javascript, LLM Application, Application Development, User Interface (UI) Design, Web Design and Development, Application Programming Interface (API), OpenAI, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Minitab, Six Sigma Methodology, Lean Six Sigma, Root Cause Analysis, Statistical Process Controls, Data Analysis Software, Statistical Software, Process Improvement and Optimization, Project Scoping, Kaizen Methodology, Quality Improvement, Data-Driven Decision-Making, Project Design, Process Improvement, Solution Design, Waste Minimization, Project Documentation, Project Management, Lean Manufacturing, Quality Assessment
Beginner · Course · 3 - 6 Months

Skills you'll gain: Apache, Network Troubleshooting, OSI Models, File Transfer Protocol (FTP), Linux Administration, Linux Servers, TCP/IP, Network Protocols, Linux Commands, Systems Analysis, Linux, Dynamic Host Configuration Protocol (DHCP), Virtual Networking, Network Analysis, General Networking, Virtual Machines, Web Servers, Network Administration, Computer Networking, Unix Shell
Intermediate · Specialization · 1 - 4 Weeks