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: Theoretical Computer Science, Algorithms, Graph Theory, Data Structures, Operations Research, Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Computational Thinking, Design Strategies, Cryptographic Protocols, Applied Mathematics, Tree Maps, Encryption, Network Model, Combinatorics, Data Science, Mathematical Software, Computer Science, Python Programming
★ 4.7 (978) · Advanced · Specialization · 3 - 6 Months
LearnQuest
Skills you'll gain: Oracle SQL Developer, SQL, Oracle Databases, PL/SQL, Database Design, Database Theory, Database Management Systems, Database Systems, Database Management, Database Architecture and Administration, Database Development, Relational Databases, Databases, Data Storage Technologies, Data Storage, Query Languages, Transaction Processing, Stored Procedure, Data Management, Data Maintenance
★ 4.6 (936) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Retrieval-Augmented Generation, LLM Application, AI Workflows, Prompt Engineering, Large Language Modeling, Model Deployment, Embeddings, Vector Databases
★ 4.5 (173) · Intermediate · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Database Design, Relational Databases, SQL, Database Management, Database Theory, Database Systems, Data Integrity, Data Store, Database Development, Network Model, Database Architecture and Administration, Database Management Systems, Systems Development, Microsoft SQL Servers, Performance Tuning, Requirements Analysis, Systems Development Life Cycle, Data Modeling, Data Architecture, Data Manipulation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Application Development, Data Persistence, Development Environment, Angular, Test Automation, Test Script Development, Program Development, JavaScript Frameworks, Debugging, Application Lifecycle Management, Cross Platform Development, User Interface (UI), Web Development Tools, Application Frameworks, Video Game Development, Event-Driven Programming, Node.JS, Application Design, Web Applications, Javascript
Intermediate · Specialization · 3 - 6 Months

Scrimba
Skills you'll gain: Responsive Web Design, JSON, User Interface (UI) Design, Color Theory, Cascading Style Sheets (CSS), User Interface (UI), HTML and CSS, Hypertext Markup Language (HTML), Restful API, Web Content Accessibility Guidelines, Event-Driven Programming, Web Design, Typography, Web Applications, API Design, User Interface and User Experience (UI/UX) Design, Application Programming Interface (API), React.js, Javascript, Web Development
★ 4.7 (601) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Session Initiation Protocols, Node.JS, File Transfer Protocol (FTP), Debugging, Web Applications, Data Import/Export, File I/O, Frontend Performance, Scalability, Verification And Validation, Full-Stack Web Development, Data Validation, JSON, Real Time Data, Event-Driven Programming, Memory Management, Performance Tuning, Server Side, Application Programming Interface (API), User Interface (UI)
Intermediate · Course · 1 - 3 Months

Wesleyan University
Skills you'll gain: Descriptive Statistics, Data Manipulation, Data Presentation, Data Visualization Software, Data Management, Data Literacy, Graphing, SAS (Software), Peer Review, Data Analysis, Statistics, Exploratory Data Analysis, Statistical Programming, Statistical Analysis, Python Programming
★ 4.4 (946) · Mixed · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: AI Enablement, Data Ethics, Large Language Modeling
Mixed · Course · 1 - 3 Months

Sage Publications
Skills you'll gain: Data Manipulation, Data Wrangling, Data Cleansing, Data Management, Tidyverse (R Package), R (Software), Data Transformation, R Programming, Spatial Data Analysis, Data Processing, SPSS, Spatial Analysis, Text Mining, Data Import/Export, Time Series Analysis and Forecasting, STATA (Software), Metadata Management, Statistical Analysis, Sampling (Statistics), Data Visualization
Beginner · Course · 1 - 3 Months
Skills you'll gain: Data Visualization, Data Presentation, Regression Analysis, Advanced Analytics, Analytics, Statistical Analysis, Data Analysis, Statistical Modeling, Applied Machine Learning, Analytical Skills, Data Science, Machine Learning Methods, Artificial Intelligence, Python Programming, AI literacy, Machine Learning, Portfolio Management
★ 4.8 (1.4K) · Advanced · Course · 1 - 4 Weeks
Skills you'll gain: Feature Engineering, Decision Tree Learning, Applied Machine Learning, Supervised Learning, Advanced Analytics, Statistical Machine Learning, Machine Learning, Machine Learning Algorithms, Unsupervised Learning, Analytics, Model Training, Random Forest Algorithm, Model Optimization, Predictive Modeling, Model Evaluation, Python Programming, Performance Tuning, Classification Algorithms
★ 4.8 (645) · Advanced · Course · 1 - 3 Months