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.

Johns Hopkins University
Skills you'll gain: R (Software), R Programming, Statistical Programming, Statistical Software, Statistical Analysis, Statistical Methods, Debugging, File I/O, Data Analysis, Simulations, Programming Principles, Data Import/Export, Data Processing, Data Structures, Data Manipulation, Computer Programming, Performance Tuning, Software Installation
Intermediate · Course · 1 - 4 Weeks

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: Web Development, PHP (Scripting Language), Web Design and Development, Content Management, Web Applications, HTML and CSS, Hypertext Markup Language (HTML), Scripting Languages, Frontend Integration, Software Engineering
★ 4.1 (9) · Intermediate · Guided Project · Less Than 2 Hours

University of Pennsylvania
Skills you'll gain: Feature Engineering, Unsupervised Learning, Model Evaluation, Predictive Modeling, Predictive Analytics, Advanced Analytics, Decision Tree Learning, Classification And Regression Tree (CART), Supervised Learning, Model Training, Forecasting, Machine Learning Methods, Random Forest Algorithm, Regression Analysis, Machine Learning, Logistic Regression, Python Programming
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Anomaly Detection, Image Analysis, Computer Vision, Model Training, Matlab, Generative AI, Deep Learning, Model Evaluation, Data Preprocessing, Interoperability
★ 4.9 (15) · Beginner · Course · 1 - 4 Weeks

Universitat Politècnica de València
Skills you'll gain: SQL, Database Management Systems, MySQL, Database Management, Relational Databases, Database Administration, Databases, Database Systems, Database Architecture and Administration, Query Languages, Oracle SQL Developer, Secure Coding, Data Access, Data Manipulation
★ 3.1 (7) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Warehousing, Apache Hadoop, Distributed Computing, Scalability, Transaction Processing, Database Systems, Database Design, Applied Machine Learning, Database Management Systems, Data Architecture, Database Theory, Database Management, Database Development, Database Architecture and Administration, Cloud Computing, Big Data, Relational Databases, Query Languages, Data Processing, SQL
★ 3.3 (7) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Code Reusability, Object Oriented Programming (OOP), Jupyter, Computer Programming, Python Programming, Electrical and Computer Engineering, Program Development, Simulation and Simulation Software, Computational Logic, Simulations, Programming Principles
★ 4.7 (25) · Beginner · Guided Project · Less Than 2 Hours

JetBrains
Skills you'll gain: Application Development, Application Deployment, Generative AI Agents, Large Language Modeling, Software Development Tools, LLM Application, AI literacy, IntelliJ IDEA, Agentic Workflows, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Integrated Development Environments, Agentic systems, Code Review, Software Development, Software Development Life Cycle
★ 3.3 (9) · Beginner · Course · 1 - 3 Months

Skills you'll gain: SQL Server Integration Services (SSIS), Extract, Transform, Load, Data Warehousing, Data Transformation, Data Manipulation, Data Analysis, Microsoft SQL Servers, Data Integration, Data Mining, Advanced Analytics, Pivot Tables And Charts, Data Processing, SQL, Dataflow, Workflow Management
★ 4.6 (17) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Extract, Transform, Load, Data Validation, Data Transformation, Applied Machine Learning, Object-Relational Mapping, Data Wrangling, Data Cleansing, Data Manipulation, Data Integration, Web Scraping, Data Quality, Data Pipelines, Pandas (Python Package), Descriptive Statistics, Data Modeling, Data Science, Python Programming, Scikit Learn (Machine Learning Library), Extensible Markup Language (XML), Data Analysis
★ 4 (6) · Beginner · Specialization · 1 - 4 Weeks

Skills you'll gain: Tensorflow, Convolutional Neural Networks, Keras (Neural Network Library), Matplotlib, Plot (Graphics), Artificial Neural Networks, Image Analysis, Deep Learning, Applied Machine Learning, Python Programming, Model Training, Model Evaluation, Model Optimization, Adaptability, Problem Solving
Intermediate · Guided Project · Less Than 2 Hours