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: Apple iOS, Open Web Application Security Project (OWASP), Swift Programming, Mobile Security, Mobile Development, Secure Coding, IT Security Architecture, Application Security, Data Validation, Vulnerability Assessments, Cryptography, Application Programming Interface (API), JSON
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Database Design, Database Development, SQL, Database Architecture and Administration, Data Modeling, Database Management, Technical Documentation
Advanced · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Authentications, Cryptography, Secure Coding, Kotlin, Android (Operating System), OAuth, Encryption, Mobile Security, Android Development, Key Management, Exploit development, Application Security, Android Studio, Data Security, Open Web Application Security Project (OWASP), Authorization (Computing), Mobile Development, Security Engineering, Security Controls, Application Development
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Database Design, SQL, Database Management Systems, NoSQL, Relational Databases, Data Warehousing, Database Theory, Database Architecture and Administration, Database Administration, Databases, Database Systems, Database Management, Data Modeling, Query Languages, Big Data, Database Application, Data Integrity, Data Access, Data Science, Data Analysis
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Responsible AI, Retrieval-Augmented Generation, Generative AI, Microsoft Copilot, Microsoft Azure, OpenAI API, Prompt Engineering, AI Security, OpenAI, Model Deployment, Microsoft Power Platform, LLM Application, AI Workflows, Microsoft Office, Natural Language Processing
Intermediate · Course · 1 - 4 Weeks
École Polytechnique Fédérale de Lausanne
Skills you'll gain: Scala Programming, Programming Principles, Object Oriented Programming (OOP), Functional Design, Computer Programming, Data Structures, Integrated Development Environments, Algorithms, Computational Thinking, Unit Testing
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Science, Web Applications, Python Programming, Programming Principles, Artificial Intelligence, Computer Programming, Scientific Visualization, Game Design
Beginner · Guided Project · Less Than 2 Hours

Intermediate · Course · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Data Management, File I/O, Network Protocols
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Agentic Workflows, AI Orchestration, Tool Calling, Generative AI, Gemini, Artificial Intelligence, Google Gemini, Retrieval-Augmented Generation, Embeddings, Workflow Management, Python Programming, Data Validation
Beginner · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Robotics, Engineering, Mechanics, Mathematical Modeling, Simulation and Simulation Software, Matlab, Computer Programming Tools, Physics, Angular
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Pivot Tables And Charts, Spreadsheet Software, Data-Driven Decision-Making, Data Analysis, Data Cleansing, Data Manipulation, Financial Data, Excel Formulas, Expense Management, Cost Reduction, Cost Management, Financial Reporting
Beginner · Course · 1 - 4 Weeks