Language courses can help you learn grammar, vocabulary development, pronunciation techniques, and conversational skills. You can build skills in writing clearly, understanding cultural nuances, and using language for specific purposes like business or travel. Many courses introduce tools such as language learning apps, online dictionaries, and pronunciation software, which enhance your ability to practice and apply what you've learned in everyday situations.

Duke University
Skills you'll gain: Deep Learning, MLOps (Machine Learning Operations), Responsible AI, Model Evaluation, Data Ethics, Data Management, Experience Design, Unsupervised Learning, Model Training, User Experience Design, Data Quality, Model Deployment, Data Preprocessing, Human Centered Design, Machine Learning, Regression Analysis, Project Management, Product Management, Product Design, Data Science
★ 4.7 (1.2K) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Data Structures, Code Reusability, Jupyter, Python Programming, Programming Principles, Scripting, File I/O, Computational Logic, Computer Programming, Data Manipulation, Analysis
★ 4.3 (1.8K) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: C# (Programming Language), ASP.NET, Full-Stack Web Development, .NET Framework, Back-End Web Development, CI/CD, Microsoft Azure, Docker (Software), Web Development, Containerization, Application Deployment, PostgreSQL, Object Oriented Programming (OOP), Cloud Infrastructure, Database Management, Web Development Tools, Database Design, API Design, GitHub, Middleware
Intermediate · Specialization · 1 - 3 Months

Microsoft
Skills you'll gain: Web Scraping, Data Structures, Generative AI, Version Control, Git (Version Control System), Matplotlib, Data Visualization, Web Development, Debugging, Data Literacy, Scripting, Flask (Web Framework), Plotly, Data Ethics, GitHub, Containerization, DevOps, Automation, Data Analysis, Cloud Computing
★ 4.4 (763) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Generative AI Agents, Agentic systems, LLM Application, Agentic Workflows, Generative Model Architectures, Large Language Modeling, Generative AI, LangChain, AI Orchestration, Retrieval-Augmented Generation, Tool Calling, Process Design, Prompt Engineering, Artificial Intelligence and Machine Learning (AI/ML), Model Deployment, Context Engineering, Data Architecture, AI Security, Fine-tuning, Data Science
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Object Oriented Design, Development Environment, Engineering Software, Computer Programming, Software Engineering, Data Structures, Memory Management, Computer Programming Tools, Debugging, Program Development
★ 4.7 (3K) · Intermediate · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Balance Sheet, Financial Statements, Management Accounting, Performance Measurement, Income Statement, Financial Statement Analysis, Cost Accounting, Capacity Management, Operating Cost, Financial Reporting, Asset Management, Organizational Strategy, Performance Analysis, Financial Accounting, Operational Analysis, Financial Analysis, Budgeting, Operating Budget, Cost Control, Fixed Asset
★ 4.6 (2.1K) · Beginner · Specialization · 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Revenue Recognition, Accrual Accounting, Financial Statements, Accruals, Accounting, Financial Accounting, Accounting Records, Inventory Accounting, Accounts Receivable, Balance Sheet, Financial Reporting
★ 4.7 (4.7K) · Beginner · Course · 1 - 3 Months
University of Michigan
Skills you'll gain: PHP (Scripting Language), MySQL, Database Application, Database Development, Object Oriented Programming (OOP), Database Management, Secure Coding, Authentications, Web Applications, SQL, Network Protocols
★ 4.8 (1.1K) · Intermediate · Course · 1 - 3 Months

Princeton University
Skills you'll gain: Programming Principles, Computer Programming, Object Oriented Design, Object Oriented Programming (OOP), Performance Tuning, Data Structures, Code Reusability, Other Programming Languages, Java Programming, Java, Program Development, Computational Thinking, Computer Science, Algorithms, Theoretical Computer Science, Animations
★ 4.7 (1.4K) · Beginner · Course · 1 - 3 Months

University of Maryland, College Park
Skills you'll gain: Interviewing Skills, Negotiation, Oral Expression, Telephone Skills, Presentations, Marketing Planning, Verbal Communication Skills, Public Speaking, Professional Development, Applicant Tracking Systems, English Language, Copywriting, Persuasive Communication, Strategic Marketing, Business Writing, Intercultural Competence, Business Correspondence, Writing and Editing, Campaign Planning, Personal Attributes
★ 4.6 (774) · Intermediate · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Secure Coding, Java Programming, Maintainability, Hardening, Java, Software Design Patterns, Application Security, Software Design, Data Structures, Object Oriented Design, Software Architecture, Performance Tuning, Memory Management, API Design, Code Reusability, Object Oriented Programming (OOP), Web Servers, Application Programming Interface (API), Software Development, Virtualization
Intermediate · Specialization · 3 - 6 Months