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.

LearnKartS
Skills you'll gain: Apache Kafka, Real Time Data, Data Pipelines, Analytics, Distributed Computing, Data Processing, Live Streaming, Systems Architecture, Event-Driven Programming, Development Environment
★ 3.9 (43) · Beginner · Course · 1 - 3 Months

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Numerical Analysis, Differential Equations, Mathematical Software, Matlab, Calculus, Linear Algebra, Applied Mathematics, Mathematical Theory & Analysis, Integral Calculus, Experimentation, Algorithms, Derivatives
★ 4.5 (110) · Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Digital Transformation, Predictive Modeling, Customer experience strategy (CX), Analytics, Predictive Analytics, Simulations, Simulation and Simulation Software, Advanced Analytics, Business Transformation, Scikit Learn (Machine Learning Library), Model Evaluation, Data-Driven Decision-Making, Operations Research, Internet Of Things, Model Training, Ethical Standards And Conduct, Cloud Computing, Data Ethics, Business Analytics, Process Optimization
★ 4.8 (36) · Intermediate · Specialization · 3 - 6 Months

Illinois Tech
Skills you'll gain: Statistical Analysis, Time Series Analysis and Forecasting, Data Analysis, Machine Learning Algorithms, Model Evaluation, Data Visualization, Data Science, Exploratory Data Analysis, Data Presentation, Statistical Programming, Statistical Methods, Statistical Machine Learning, Analysis, Statistical Modeling, Applied Machine Learning, R (Software), R Programming, Statistical Software, Forecasting, Machine Learning
★ 4.3 (23) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Selenium (Software), Object Oriented Programming (OOP), Eclipse (Software), Java, Java Programming, JUnit, HTML and CSS, Object Oriented Design, Test Automation, Hypertext Markup Language (HTML), Software Testing, Test Script Development, Integrated Development Environments, Web Design and Development, Test Data, Test Tools, Browser Compatibility, Computer Programming, Web Development, Programming Principles
★ 4.5 (33) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Excel Macros, Forecasting, Microsoft Copilot, Dashboard Creation, Microsoft Excel, Predictive Modeling, Workflow Management, UI Components, Visual Basic (Programming Language), User Interface (UI), Automation, Debugging, Interactive Data Visualization, Scenario Testing, Programming Principles
★ 4.5 (71) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Apple Xcode, Code Review, UI Components, Unit Testing, Mobile Development, User Interface (UI), User Interface (UI) Design, Application Development, User Interface and User Experience (UI/UX) Design, Application Design, Interactive Design, Code Reusability
★ 4.7 (248) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, Fine-tuning, Prompt Engineering, OpenAI, Large Language Modeling, ChatGPT, Multimodal Prompts, Application Performance Management, Generative Model Architectures, Generative AI, LLM Application, Image Analysis, Photo Editing, Token Optimization, Application Programming Interface (API), Animations, Tool Calling, File Management, Python Programming, Computer Science
★ 3.9 (36) · Beginner · Specialization · 1 - 3 Months

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

Columbia University
Skills you'll gain: Derivatives, Credit Risk, Securities (Finance), Financial Market, Portfolio Risk, Capital Markets, Risk Modeling, Risk Management, Portfolio Management, Financial Modeling, Mathematical Modeling, Probability Distribution, Computer Programming
★ 4.5 (33) · Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Google Workspace, Oral Comprehension, Collaborative Software, Language Interpretation, Translation, and Studies, Multilingualism, Image Quality, AI Workflows, Context Management, Real Time Data
★ 4.2 (35) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cyber Operations, Data Persistence, Exploitation techniques, Persistence, Intrusion Detection and Prevention, Scripting, Python Programming, Scripting Languages
★ 4.6 (98) · Intermediate · Course · 1 - 4 Weeks