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.

The Linux Foundation
Skills you'll gain: Package and Software Management, Linux, Command-Line Interface, File Systems, Linux Administration, Linux Commands, User Accounts, Operating System Administration, System Configuration, Bash (Scripting Language), File Management, Unix Shell, User Provisioning, System Monitoring, Shell Script, Operating Systems, System Software, Patch Management, Software Installation, OS Process Management
Beginner · Course · 1 - 3 Months

Interactive Brokers
Skills you'll gain: Financial Trading, International Finance, Financial Market, Securities Trading, Equities, Capital Markets, Securities (Finance), Market Data, Market Dynamics, Market Liquidity, Investments, Portfolio Risk, Profit and Loss (P&L) Management, Market Analysis, Order Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electrical Substation, Electrical Systems, Electrical Power, Control Systems, Electric Power Systems, High Voltage, Electrical Equipment, Electrical Wiring, Low Voltage, Electrical Safety, Three-Phase, Plant Operations and Management, Building Services Engineering, HVAC, Energy and Utilities, Mechanical Design, Wiring Diagram, Schematic Diagrams, Construction, Civil Engineering
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: API Gateway, Restful API, API Design, Application Programming Interface (API), Cloud API, Google Cloud Platform, Application Lifecycle Management, Proxy Servers, Software Documentation, Application Development, Enterprise Architecture, Development Environment, Application Deployment, Authorization (Computing), Authentications, Debugging
Beginner · Course · 1 - 3 Months

Erasmus University Rotterdam
Skills you'll gain: Security Management, Threat Management, Intelligence Collection and Analysis, International Relations, Public Safety and National Security, Safety and Security, Risk Management, Cybersecurity, Economics, Policy, and Social Studies
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Electrical Power, Energy and Utilities, Electric Power Systems, Electrical Systems, Petroleum Industry, Regulatory Requirements, Environmental Regulations, Customer Engagement, Regulatory Affairs, Regulatory Compliance, Capacity Management, Sustainable Systems, Emerging Technologies, Billing, Technology Strategies, Environmental Issue, Environmental Policy, Climate Change Mitigation
Beginner · Course · 1 - 3 Months

Skills you'll gain: COBOL (Programming Language), Continuous Integration, Development Testing, Test Automation, Unit Testing, Development Environment, Middleware, Program Development, z/OS, Mainframe Computing, Debugging, Integrated Development Environments, Mainframe Technologies, Data Structures, Computer Programming, Programming Principles, Application Programming Interface (API), File I/O, Performance Tuning, Automation
Intermediate · Course · 3 - 6 Months

Salesforce
Skills you'll gain: Time Management, Productivity, Growth Mindedness, Sales Development, Professional Development, Goal Setting, Prioritization, Professionalism, Collaboration, Open Mindset, Personal Development, Teamwork, Sales, Performance Metric, Constructive Feedback, Self-Awareness, Salesforce, Stress Management, Accountability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OpenAI API, Fine-tuning, Prompt Engineering, OpenAI, Large Language Modeling, ChatGPT, Multimodal Prompts, Application Performance Management, Generative Model Architectures, Generative AI, LLM Application, Image Analysis, Photo Editing, Token Optimization, Application Programming Interface (API), Animations, Tool Calling, File Management, Python Programming, Computer Science
Beginner · Specialization · 1 - 3 Months

Board Infinity
Skills you'll gain: Quality Management, Quality Management Systems, ISO 9000 Series, Statistical Process Controls, Product Quality (QA/QC), Quality Improvement, Quality Monitoring, Quality Assessment, Service Improvement, Customer experience strategy (CX), Customer experience improvement, Continuous Quality Improvement (CQI), Quality Control, User Feedback, Product Improvement, Continuous Improvement Process, Technical Standard, Process Improvement
Beginner · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: electromagnetics, Electrical Engineering, Differential Equations, Physics, Electrical Systems, Materials science, Integral Calculus, Advanced Mathematics, Energy and Utilities, Applied Mathematics, Engineering Calculations, Engineering, Mechanics, Electronic Components, Engineering Analysis, Mathematical Modeling, Scientific Visualization
Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Sample Size Determination, Statistical Inference, Estimation, Business Analytics, Statistics, Probability & Statistics, Sampling (Statistics), Statistical Analysis, Microsoft Excel, Excel Formulas, Probability Distribution, Data Analysis
Mixed · Course · 1 - 4 Weeks