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.

Coursera
Skills you'll gain: Java, Data Structures, File I/O, Java Programming, Data Access, Data Cleansing
★ 4.6 (20) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Javascript, Web Applications, HTML and CSS, Animations, Hypertext Markup Language (HTML), Event-Driven Programming, Cascading Style Sheets (CSS), Web Design and Development, Animation and Game Design, Application Development, Event Monitoring
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Jest (JavaScript Testing Framework), User Acceptance Testing (UAT), Cucumber (Software), Postman API Platform, Software Testing, Behavior-Driven Development, Selenium (Software), Test Driven Development (TDD), Performance Stress Testing, API Testing, Unit Testing, Performance Testing, Application Programming Interface (API), User Interface (UI), Javascript
★ 4.2 (15) · Beginner · Course · 1 - 4 Weeks

University of Leeds
Skills you'll gain: Exploratory Data Analysis, Data Cleansing, Statistical Methods, Statistical Visualization, Plot (Graphics), Statistical Modeling, Data Visualization, Statistics, R (Software), Data Analysis, Statistical Software, Probability & Statistics, Data Literacy, Statistical Inference, R Programming, Descriptive Statistics, Box Plots, Data Visualization Software, Histogram, Probability
★ 4.5 (10) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Pandas (Python Package), Data Cleansing, Data Manipulation, Data Preprocessing, Data Wrangling, NumPy, File I/O, Query Languages, Data Transformation, Data Integration, Python Programming, Data Analysis, Debugging
★ 4.3 (16) · Beginner · Course · 1 - 4 Weeks

Tufts University
Skills you'll gain: Statistical Hypothesis Testing, Statistical Inference, Microsoft Excel, Quantitative Research, Statistical Methods, Probability & Statistics, Statistical Analysis, Data Analysis Software, Sampling (Statistics), Analytical Skills, Spreadsheet Software, Statistics, Business Analytics, Python Programming
★ 4.2 (24) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: SQL, PostgreSQL, Data Manipulation
★ 4.6 (23) · Intermediate · Guided Project · Less Than 2 Hours

Ball State University
Skills you'll gain: Statistical Methods, Probability & Statistics, Probability, Statistical Modeling, Statistical Programming, Statistical Analysis, Probability Distribution, Statistical Inference, Bayesian Statistics, Data Science, Sampling (Statistics), Statistical Hypothesis Testing, R Programming, Dimensionality Reduction, R (Software), Simulations, Statistical Visualization
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Adobe Illustrator, Logo Design, Graphic Design, Creative Design, Graphics Software, Graphical Tools, Adobe Creative Cloud, Graphic and Visual Design, Style Guides, Project Design, Design, Digital Design, Design Software, Typography, File Management, Design Elements And Principles, Design Specifications, Color Theory
★ 3.9 (14) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado Boulder
Skills you'll gain: Statistical Hypothesis Testing, Correlation Analysis, Statistical Analysis, Statistical Software, Statistical Programming, Statistical Methods, Probability & Statistics, Statistical Visualization, Analytics, Data Analysis Software, Data Analysis, R (Software), Business Analytics, Data Visualization, R Programming, Statistics, Statistical Inference, Variance Analysis, Descriptive Statistics, Sampling (Statistics)
★ 4.8 (32) · Intermediate · Course · 1 - 3 Months

Politecnico di Milano
Skills you'll gain: Cloud Development, Amazon Elastic Compute Cloud, Cloud Applications, Cloud Infrastructure, Bioinformatics, Cloud Computing Architecture, Cloud Computing, Algorithms, Development Environment, Amazon Web Services, Model Optimization, Performance Tuning, Program Development, Computer Architecture, Hardware Architecture, Performance Testing, Application Performance Management, Computer Programming, Memory Management
★ 4.4 (26) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Shiny (R Package), Interactive Data Visualization, Dashboard, Dashboard Creation, Data Visualization Software, R Programming, R (Software), Data Wrangling, User Interface (UI) Design, Ggplot2, Data Manipulation, Data Integration, Data Import/Export
Intermediate · Guided Project · Less Than 2 Hours