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 Copenhagen
Skills you'll gain: Demography, Social Studies, Social Sciences, Political Sciences, Economics, Policy, and Social Studies, International Relations, Sociology, World History, Governance, Socioeconomics, Policy Analysis, Social Justice, Economics, Human Development, Education and Training
★ 4.7 (546) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Swift Programming, Apple iOS, iOS Development, Unit Testing, Apple Xcode, Test Case, Software Testing, Object Oriented Programming (OOP), Data Structures, Object Oriented Design, Programming Principles, Application Development, Functional Design, Algorithms
★ 4.7 (93) · Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Development Environment, Web Development, Computer Programming, Program Development, Other Programming Languages
★ 2.8 (28) · Beginner · Course · 1 - 3 Months

Interactive Brokers
Skills you'll gain: Environmental Social And Corporate Governance (ESG), Sustainable Development, Market Data, Corporate Sustainability, Investment Management, Sustainability Standards, Sustainable Business, Environmental Regulations, Financial Market, Petroleum Industry, Investments, Data Ethics, Sustainability Reporting, Financial Data, Market Trend, Portfolio Management, Market Analysis, Business Ethics, Data Science, Risk Management
★ 4.5 (127) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Rmarkdown, Ggplot2, R (Software), Plot (Graphics), Data Visualization, Tidyverse (R Package), Statistical Visualization, R Programming, Data Visualization Software, Statistical Programming, Data Manipulation, Data Analysis Software, Statistical Reporting, Data Analysis, Data Validation, Data Transformation, Code Reusability, Software Installation, Programming Principles, Aesthetics
★ 4.2 (49) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Data Cleansing, Logistic Regression, Data Preprocessing, Applied Machine Learning, Data Import/Export, Data Mining, Python Programming, Data Access, Scikit Learn (Machine Learning Library), Predictive Modeling, Machine Learning Methods, Classification Algorithms, Machine Learning, Supervised Learning
★ 4.2 (57) · Intermediate · Guided Project · Less Than 2 Hours

MedCerts
Skills you'll gain: Sterilization, Medical Terminology, Infection Control, Asepsis, Pathology, Hand Hygiene, Sterile Procedure, Anatomy, Occupational Safety and Health Administration (OSHA), Health And Safety Standards, Sanitation, Medical History Documentation, Diagnostic Tests, Safety Standards, Physiology, Patient Communication, Infectious Diseases
★ 4.9 (35) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Business Ethics, Ethical Standards And Conduct, Decision Making, Strategic Decision-Making, Case Studies, Social Impact, Conflict Management, Team Leadership
★ 4.9 (188) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Scripting Languages, Scripting, Java, Java Programming, Server Side, Web Applications, Web Components
★ 4.7 (94) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Feature Engineering, Data Ethics, Unsupervised Learning, Dimensionality Reduction, Responsible AI, Text Mining, Data Preprocessing, Data Transformation, Anomaly Detection, Exploratory Data Analysis, Machine Learning, Scikit Learn (Machine Learning Library), Natural Language Processing, Data Science, Quality Assurance, Data Pipelines, Machine Learning Algorithms, Classification Algorithms, Design Thinking, Python Programming
★ 4.4 (83) · Advanced · Course · 1 - 4 Weeks

Meta
Skills you'll gain: Swift Programming, Apple iOS, iOS Development, User Interface and User Experience (UI/UX) Design, User Interface (UI), Git (Version Control System), User Interface (UI) Design, Version Control, Mobile Development, User Experience, Wireframing, UI Components, Application Development, Application Design, Apple software proficiency, Knowledge of Apple Software, Data Management, Software Architecture
★ 4.3 (35) · Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Model Context Protocol, AI Workflows, AI Integrations, Generative AI Agents, Tool Calling, OpenAI API, Agentic Workflows, Anthropic Claude, Context Management, Real Time Data, Debugging, Artificial Intelligence and Machine Learning (AI/ML), Servers, Artificial Intelligence, Data Access, Generative AI, Interoperability, Server Administration
★ 3.6 (25) · Intermediate · Course · 1 - 4 Weeks