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.

University of Colorado Boulder
Skills you'll gain: Statistical Modeling, Statistical Machine Learning, Data Science, Statistical Methods, Statistical Analysis, Model Evaluation, Regression Analysis, Predictive Modeling, R Programming, Machine Learning, Classification Algorithms, Supervised Learning, Unsupervised Learning, Machine Learning Algorithms
Build toward a degree
Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Prompt Engineering, Marketing Strategies, Artificial Intelligence and Machine Learning (AI/ML), Strategic Marketing, Marketing Analytics, Artificial Intelligence, Generative AI, Agentic systems, Content Development and Management, Digital Marketing, Content Creation, Automation, Business Ethics, Customer experience improvement, Machine Learning, Natural Language Processing, Content Management, Creativity, Ethical Standards And Conduct, Interactive Data Visualization
Beginner · Course · 1 - 3 Months

Skills you'll gain: Cyber Operations, Cybersecurity, Authentications, Python Programming, Data Access, System Monitoring, Systems Analysis
Mixed · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Performance Analysis, Apache Airflow, Workflow Management, Vector Databases, Scalability, Database Management Systems, Database Management, Data Pipelines, Data Architecture, Real Time Data, MySQL, Complex Problem Solving, Data Import/Export, Data Transformation, Graph Theory
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operations Research, Supply Chain, Supply Chain Management, Supply Chain Planning, Operational Analysis, Process Improvement and Optimization, Capacity Planning, Production Planning, Data Analysis, R Programming
Beginner · Guided Project · Less Than 2 Hours

Universidad de los Andes
Skills you'll gain: Structural Analysis, Engineering Analysis, Engineering Calculations, Finite Element Methods, Civil Engineering, Mathematical Modeling, Numerical Analysis, Python Programming, NumPy, Linear Algebra, Simulation and Simulation Software, Plot (Graphics)
Advanced · Course · 1 - 3 Months

Duke University
Skills you'll gain: NumPy, Data Structures, Data Analysis, Object Oriented Programming (OOP), Exploratory Data Analysis, Image Analysis, Data Science, Data Transformation, Data Manipulation, Big Data, Performance Tuning, Python Programming, Data Import/Export
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Code Review, Debugging, Scripting, Python Programming, Programming Principles, Software Development
Intermediate · Guided Project · Less Than 2 Hours

University of Pittsburgh
Skills you'll gain: Statistical Analysis, NumPy, Probability Distribution, Matplotlib, Statistics, Pandas (Python Package), Data Science, Probability & Statistics, Probability, Statistical Modeling, Predictive Modeling, Data Analysis, Linear Algebra, Predictive Analytics, Statistical Methods, Mathematics and Mathematical Modeling, Applied Mathematics, Python Programming, Machine Learning, Logical Reasoning
Build toward a degree
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Linux, Scripting, Linux Administration, Operating System Administration, Data Persistence, Shell Script, Unix Shell, Systems Administration, IT Automation, Command-Line Interface, Cloud Hosting, Object-Relational Mapping, YAML, Python Programming, File Transfer Protocol (FTP), Network Administration, OS Process Management, File Management
Mixed · Course · 1 - 3 Months

Skills you'll gain: Blockchain, Web Development Tools, Go (Programming Language), Software Development Tools, Application Development, Computer Programming Tools, Development Environment, Software Development, Business Logic, Program Development, Digital Assets, Transaction Processing, FinTech, Virtual Machines, Distributed Computing, Cryptography, Emerging Technologies, Encryption, Business Analysis, Market Dynamics
Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Simple Object Access Protocol (SOAP), Restful API, Web Services, Hypertext Markup Language (HTML), HTML and CSS, Java Platform Enterprise Edition (J2EE), Software Design, Java, Extensible Markup Language (XML), Application Programming Interface (API), API Design, JSON, Software Architecture, Web Design and Development, Web Applications, Front-End Web Development, Web Development
Beginner · Specialization · 1 - 3 Months