English pronunciation courses can help you learn vowel and consonant sounds, intonation patterns, and stress placement. You can build skills in clear speech, effective listening, and accent reduction techniques. Many courses introduce tools like phonetic charts and pronunciation apps, which assist in practicing sounds and tracking progress.

Duke University
Skills you'll gain: Advertising, Media and Communications, Advertising Campaigns, Online Advertising, Digital Advertising, Electronic Media, Culture, Marketing Psychology, Diversity Marketing, Consumer Behaviour, Ethical Standards And Conduct
★ 4.8 (989) · Mixed · Course · 1 - 3 Months

Rice University
Skills you'll gain: Biology, Environment, Microbiology, Life Sciences, Environmental Science, Environmental Issue, Environment and Resource Management, Infectious Diseases, Sustainable Development, Demography, Natural Resource Management, Molecular Biology, Cell Biology, Anatomy, Estimation, Taxonomy, Scientific Methods, General Science and Research, Experimentation, Case Studies
★ 4.8 (311) · Beginner · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Probability, Statistical Hypothesis Testing, Statistical Inference, Probability & Statistics, Statistical Methods, Probability Distribution, Statistics, Bayesian Statistics, Statistical Analysis, Sampling (Statistics), Applied Mathematics, Data Ethics, Data Analysis, Correlation Analysis, Data Science, Sample Size Determination, Data Collection
★ 4.4 (366) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Apache Hadoop, Apache Spark, PySpark, Apache Hive, Big Data, IBM Cloud, Kubernetes, Docker (Software), Scalability, Data Processing, Development Environment, Distributed Computing, Performance Tuning, Open Source Technology, Data Transformation, Debugging
★ 4.4 (485) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Pandas (Python Package), Data Analysis, Analytics, Exploratory Data Analysis, Data Manipulation, Jupyter, Data Processing, Data Wrangling, Matplotlib, Data Visualization, Programming Principles, Data Cleansing, Data Visualization Software, Python Programming
★ 4.3 (248) · Beginner · Course · 1 - 3 Months

Wesleyan University
Skills you'll gain: Preventative Care, Public Health and Disease Prevention, Research, Crisis Intervention, Research Methodologies, Epidemiology, Mental and Behavioral Health, Behavioral Health, Mental Health Diseases and Disorders, Science and Research, General Science and Research, Public Health, Mental Health, Mental Health Therapies
★ 4.7 (331) · Beginner · Course · 1 - 4 Weeks

Berklee
Skills you'll gain: Music Theory, Musical Composition, Music, Instrumental Music, Performing Arts, Storytelling, Music Performance
★ 4.8 (792) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Package and Software Management, Data Science, Exploratory Data Analysis, Computer Programming, Mathematical Software, Data Structures
★ 4.7 (107) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangGraph, AI Workflows, Agentic Workflows, AI Orchestration, Generative AI Agents, Agentic systems, LangChain, LLM Application, Generative AI, Artificial Intelligence and Machine Learning (AI/ML), Prompt Patterns, Retrieval-Augmented Generation, Tool Calling, Responsible AI, Risking, Context Management, Software Development, Python Programming, Data Science
★ 4.6 (114) · Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Life Sciences, Molecular Biology, Biotechnology, Environment, Biological Engineering, Molecular, Cellular, and Microbiology, Biology, Physiology, Sustainable Development, Medical Science and Research, Environmental Science, Cell Biology, Microbiology, Analysis, Research
★ 4.6 (332) · Beginner · Course · 1 - 3 Months

Rutgers the State University of New Jersey
Skills you'll gain: Social Media Strategy, Social Media Campaigns, Social Media Marketing, Content Marketing, Marketing Effectiveness, Marketing Strategies, Campaign Management, Marketing Communications, Return On Investment, Key Performance Indicators (KPIs), Driving engagement, Social Media Analytics, Content Strategy, Stakeholder Engagement, Marketing Budgets, Brand Awareness, Marketing Analytics, Presentations, Digital Marketing Tools, Target Audience
★ 4.3 (196) · Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: GitHub Copilot, Generative AI, Microsoft Copilot, Prompt Engineering, Test Case, Responsible AI, Microsoft Visual Studio, Version Control, Code Review, Data Ethics, GitHub, Prompt Patterns, Microsoft Development Tools, Integrated Development Environments, AI literacy, Software Versioning, AI Integrations, Risking, Software Development Tools, Project Management
★ 4.3 (245) · Intermediate · Specialization · 1 - 3 Months