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.

Skills you'll gain: Vulnerability Management, Threat Modeling, Incident Response, Intrusion Detection and Prevention, Threat Management, Network Security, Operating Systems, Threat Detection, Risk Management, Security Information and Event Management (SIEM), Risk Management Framework, Computer Security Incident Management, Cyber Attacks, Bash (Scripting Language), Security Controls, Cybersecurity, Debugging, File I/O, Linux, SQL
★ 4.9 (7.4K) · Beginner · Professional Certificate · 3 - 6 Months
University of Michigan
Skills you'll gain: Feature Engineering, Model Evaluation, Applied Machine Learning, Supervised Learning, Scikit Learn (Machine Learning Library), Predictive Modeling, Machine Learning Methods, Machine Learning, Model Training, Model Optimization, Machine Learning Algorithms, Unsupervised Learning, Python Programming, Classification Algorithms, Artificial Neural Networks
★ 4.6 (8.8K) · Intermediate · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Robotics, Machine Controls, Control Systems, Mathematical Modeling, Mathematical Software, Simulation and Simulation Software, Engineering, Mechanics, Mechanical Engineering, Applied Mathematics, Numerical Analysis, Simulations, Process Control, Virtual Environment, Torque (Physics), Graph Theory, Matlab, Algorithms, Engineering Calculations, Physics
★ 4.7 (1.3K) · Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Excel Macros, Programming Principles, Visual Basic (Programming Language), Program Development, Object Oriented Programming (OOP), Computer Programming, Debugging, Data Cleansing, Problem Solving, Code Reusability, Spreadsheet Software, Data Management, Automation
★ 4.8 (4.3K) · Beginner · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Financial Reporting, Auditors Report, Financial Statements, Financial Statement Analysis, Financial Analysis, Financial Accounting, Financial Acumen, Accounting, Business Reporting, Management Reporting, Balance Sheet, Annual Reports, Auditing, Financial Data, Standard Accounting Practices, Financial Controls, Budgeting, Language Interpretation, Translation, and Studies, Performance Management, Training Programs
Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Prompt Engineering, Multimodal Prompts, Data Preprocessing, Generative AI, AI Integrations, Data Processing, Data Pipelines, Data Quality, Data Validation, JSON, Amazon Web Services, Data Governance, API Design, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Natural Language Processing, Artificial Intelligence, Software Development, Python Programming, Machine Learning
Advanced · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), Algorithms, C (Programming Language), Programming Principles, Computer Programming, Graph Theory, Code Reusability, Memory Management, Data Structures, File I/O
★ 4.4 (2.3K) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Restful API, API Design, ASP.NET, Application Programming Interface (API), GraphQL, .NET Framework, Object-Relational Mapping, Data Modeling, Data Store, Relational Databases, Middleware, C# (Programming Language), Query Languages, Transact-SQL, Data Mapping, Application Frameworks, Data Access, Back-End Web Development, Data Persistence, Configuration Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: DeepSeek API, Deepseek, Agentic Workflows, Retrieval-Augmented Generation, AI Workflows, Generative AI Agents, AI Orchestration, Tool Calling, LLM Application, Prompt Engineering, Application Deployment, Application Programming Interface (API), Agentic systems, Generative AI, Embeddings, Artificial Intelligence, Model Evaluation, Python Programming, Large Language Modeling, Vector Databases
Beginner · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Manipulation, Data Cleansing, Data Wrangling, Data Processing, Data Integration, Data Preprocessing, Data Transformation, Data Import/Export, Data Collection, Data Management, Web Scraping, Data Access, R Programming, R (Software), MySQL, File Management, SQL, Application Programming Interface (API)
★ 4.5 (8.1K) · Mixed · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Mobile Development, React.js, UI Components, Mobile Development Tools, Webpack, Front-End Web Development, Application Development, Dataflow, Code Reusability, Hypertext Markup Language (HTML), User Interface (UI), Event-Driven Programming, Cascading Style Sheets (CSS), Javascript, Development Environment
★ 4.7 (2.6K) · Beginner · Course · 1 - 4 Weeks

Rice University
Skills you'll gain: Patient Communication, Bilingual (Spanish/English), Patient Education and Support, Spanish Language, Patient-centered Care, Medical Terminology, Language Competency, Dignity in Care, Vocabulary, Oral Comprehension, Diagnostic Tests, Grammar, Pharmaceutical Terminology, Language Learning
★ 4.7 (339) · Intermediate · Course · 1 - 3 Months