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: Apache Kafka, Command-Line Interface, Data Pipelines, Java, Java Programming, Enterprise Application Management, Real Time Data, Unix Commands, Data Integration, Distributed Computing, Performance Tuning, Software Installation
★ 4.4 (12) · Intermediate · Course · 3 - 6 Months

The Hong Kong University of Science and Technology
Skills you'll gain: HTML and CSS, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), jQuery, Javascript and jQuery, Web Design and Development, Javascript, Web Development, Animations, Front-End Web Development, Animation and Game Design, Web Applications, Event-Driven Programming, Software Design Patterns
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Javascript, Event-Driven Programming, Web Design and Development, Interactive Design, Web Applications, Interaction Design, Scripting, Web Development, Data Validation
★ 3.9 (28) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Computer Vision, Image Analysis, Program Development, Data Science, Real Time Data, Visualization (Computer Graphics), Code Reusability, Python Programming, Development Environment, Model Training, Classification Algorithms, File I/O, Color Matching, System Design and Implementation, Data Preprocessing, Software Installation
★ 4.3 (25) · Beginner · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: PHP (Scripting Language), Model View Controller, Restful API, Secure Coding, Web Development, Object-Relational Mapping, Web Applications, Full-Stack Web Development, Development Environment, Development Testing, Software Testing, Back-End Web Development, Security Controls, API Design, Application Frameworks, Database Management, Web Frameworks, Application Programming Interface (API), Application Security, Database Development
★ 4.2 (10) · Beginner · Course · 1 - 4 Weeks

Universidad Nacional de Colombia
Skills you'll gain: Electrical Power, Electric Power Systems, Energy and Utilities, Time Series Analysis and Forecasting, Data Mining, Data Science, Statistical Methods, Python Programming, Data Processing, Applied Machine Learning, Computer Programming, Data Preprocessing, Exploratory Data Analysis, Mathematical Modeling, Artificial Neural Networks
★ 4.8 (35) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: SQL, Query Languages, Database Design, Performance Tuning, Database Management, Databases, PostgreSQL, Data Access
★ 3.2 (33) · Intermediate · Guided Project · Less Than 2 Hours

Sungkyunkwan University
Skills you'll gain: Portfolio Management, Portfolio Risk, Investment Management, Investments, Performance Analysis, Risk Modeling, R Programming, R (Software), Time Series Analysis and Forecasting, Risk Analysis, Financial Analysis, Market Data, Financial Modeling, Financial Forecasting, Financial Data, Statistical Programming, Risk Management, Correlation Analysis, Regression Analysis, Data Manipulation
★ 4.4 (7) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Kubernetes, YAML, Docker (Software), Cloud-Native Computing, Application Deployment, Containerization, Devops Tools, Node.JS, Development Environment, Control Panels, Servers, Command-Line Interface, Scalability, Software Installation
★ 4.7 (19) · Intermediate · Course · 3 - 6 Months

Coursera
Skills you'll gain: Web Scraping, R (Software), Relational Databases, Statistical Software, Data Import/Export, R Programming, Databases, Microsoft Excel
★ 4.6 (19) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Animation and Game Design, Video Game Development, Game Design, 3D Assets, Event-Driven Programming, Animations, Graphics Software, Computer Graphics, Visualization (Computer Graphics), Interactive Design, Computer Graphic Techniques, Debugging, User Interface (UI), User Interface (UI) Design, UI Components, Computer Displays, Program Development, Code Reusability, Python Programming, Development Environment
★ 4.7 (33) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Databricks, Real Time Data, PySpark, Apache Hive, Apache Spark, Big Data, Data Processing, SQL, Data Manipulation, Pandas (Python Package)
★ 4.8 (43) · Intermediate · Guided Project · Less Than 2 Hours