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.

MathWorks
Skills you'll gain: Image Analysis, Computer Vision, Matlab, Anomaly Detection, Geospatial Information and Technology, Artificial Intelligence and Machine Learning (AI/ML), Machine Learning Methods, Algorithms
★ 4.6 (60) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Plotly, Dashboard, Plot (Graphics), Pandas (Python Package), Dashboard Creation, Data Manipulation, Interactive Data Visualization, Data Visualization Software, Data Visualization, Web Applications, Web Design and Development, Application Development, Data Presentation, Data Science, Python Programming
★ 4.7 (403) · Intermediate · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: System Programming, Embedded Software, System Software, Linux, Embedded Systems, Linux Administration, Debugging, Linux Commands, Operating Systems, File I/O, Peripheral Devices, Build Tools, Shell Script, Development Environment, Program Development, OS Process Management, Command-Line Interface
★ 4.7 (29) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Correlation Analysis, Plot (Graphics), Matplotlib, Seaborn, Data Cleansing, Data Visualization, Pandas (Python Package), Data Analysis, Data Manipulation, NumPy, Data Science, Statistical Analysis, Data Wrangling, Python Programming
★ 4.5 (448) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: COBOL (Programming Language), Debugging, z/OS, Unit Testing, Test Driven Development (TDD), Software Testing, Test Tools, Mainframe Computing, Mainframe Technologies, Computer Programming Tools, File I/O
★ 4.4 (133) · Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: MITRE ATT&CK Framework, Penetration Testing, Exploitation techniques, Brute-force attacks, Cyber Operations, Scripting, Cybersecurity, Python Programming, Network Analysis, Automation
★ 4.4 (56) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: LangGraph, Generative AI Agents, AI Orchestration, LangChain, Agentic systems, AI Workflows, OpenAI API, Agentic Workflows, LLM Application, Artificial Intelligence, AI Integrations, User Interface (UI), Python Programming, Context Management, Development Environment
★ 4.5 (98) · Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Scientific Visualization, NumPy, Data Visualization, Debugging, Matplotlib, Numerical Analysis, Engineering Calculations, Code Reusability, Integrated Development Environments, Computational Thinking, Engineering Analysis, Programming Principles, Data Analysis, Computer Programming, Model Optimization
★ 4.8 (22) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SAS (Software), Data Quality, Data Analysis, Data Analysis Software, Exploratory Data Analysis, Data Cleansing, Virtual Environment, Data Literacy, Interactive Data Visualization, Data Access, Statistical Reporting, Data Transformation, Statistical Programming
★ 4.7 (890) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Test Automation, Test Case, Software Development, Scalability
★ 4 (64) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Figma (Design Software), Front-End Web Development, Web Design and Development, Web Design, Prototyping, HTML and CSS, Web Development, Design Software, Hypertext Markup Language (HTML), Design, Cascading Style Sheets (CSS)
★ 4.6 (118) · Intermediate · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Data Warehousing, SQL, Data Governance, Data Integration, Data Management, Business Intelligence, Oracle Databases, Analytics, PostgreSQL, Data Mining, Big Data, Relational Databases, Database Management Systems, Query Languages, Business Analytics, Data Architecture, Analytical Skills, Data Storage Technologies
★ 4.6 (593) · Mixed · Course · 1 - 3 Months