Data visualization courses can help you learn how to create compelling charts, graphs, and dashboards, along with understanding data storytelling and visual design principles. You can build skills in interpreting data trends, selecting appropriate visual formats, and conveying insights effectively to diverse audiences. Many courses introduce tools like Tableau, Power BI, and D3.js, that support transforming raw data into visual narratives and making data-driven decisions in various fields.

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Metasploit, Public Key Infrastructure, Exploit development, Exploitation techniques, Threat Modeling, Cybersecurity, Cryptography, Mobile Security, Cryptographic Protocols, Security Testing, Vulnerability Scanning, Cyber Security Assessment, Application Security, Operating System Administration, Network Security, Operating Systems, Encryption, Hardening
★ 4 (20) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Financial Forecasting, Model Deployment, Forecasting, Financial Data, Decision Intelligence, Responsible AI, Generative AI, AI Integrations, Financial Management, Market Intelligence, Data-Driven Decision-Making, General Finance, Financial Planning, Market Research, Artificial Intelligence, Market Analysis, Data Quality
★ 4.2 (18) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Selenium (Software), Test Automation, Object Oriented Programming (OOP), File I/O, Test Script Development, Software Testing, Programming Principles, Browser Compatibility, Web Development Tools, Software Installation, Automation, Scripting, Python Programming, Development Environment, Integrated Development Environments, Package and Software Management
★ 4.6 (16) · Beginner · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Amazon Web Services, AWS Identity and Access Management (IAM), Amazon DynamoDB, Cloud Services, Cloud Computing, Relational Databases, Cloud Storage, Amazon CloudWatch, Databases, Database Management, Authorization (Computing), Operational Databases, Virtual Private Networks (VPN), Configuration Management
★ 4.3 (20) · Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Prompt Patterns, Generative AI Agents, AI Orchestration, AI Workflows, Business Process Automation, Make.com, Large Language Modeling, Automation, ChatGPT, Agentic systems, Generative Model Architectures, Agentic Workflows, LangChain, Responsible AI, AI Security, Workflow Management, OpenAI, Process Optimization, Application Programming Interface (API), Decision Support Systems
★ 4.3 (21) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Peripheral Devices, USB, Operating Systems, Computer Hardware, Operating System Administration, Data Storage Technologies, Hardware Troubleshooting, Data Storage, Computing Platforms, Desktop Support, Computer Systems, System Configuration, Electrical Safety, Linux, File Systems, Information Technology, Microsoft Windows, Information Privacy
★ 4.7 (25) · Beginner · Course · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Recruitment, Full Cycle Recruitment, Talent Recruitment, Human Resources Management and Planning, Human Resources, Talent Management, Recruitment Strategies, Talent Acquisition, Consultative Approaches, Consulting, Interviewing Skills, Coordination
★ 4.4 (8) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Object-Relational Mapping, Database Design, Data Access, Data Persistence, Java, Relational Databases, Data Mapping, Java Programming, JUnit, SQL, Database Development, Query Languages, Software Versioning
★ 5 (13) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Unsupervised Learning, Anomaly Detection, Data Preprocessing, Machine Learning Methods, Data Mining, Applied Machine Learning, Feature Engineering, Data Analysis, Correlation Analysis, Algorithms
★ 4.8 (12) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Rust (Programming Language), Development Environment, Programming Principles, Data Structures, Memory Management, Integrated Development Environments
★ 3.7 (20) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Milestones (Project Management), Project Management Software, Delegation Skills, Project Planning, Project Coordination, Databases, Relational Databases, Project Management, Collaborative Software, Team Oriented
★ 4.2 (18) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Networking Hardware, OSI Models, Network Architecture, Network Protocols, General Networking, Network Security, TCP/IP, Computer Networking, Cloud Technologies, Network Infrastructure, Network Administration, Local Area Networks, Cloud Platforms, Network Planning And Design, Routing Protocols, Cloud Infrastructure, Virtual Private Networks (VPN), Cloud Services, Telecommunications, Wireless Networks
★ 4.3 (12) · Intermediate · Course · 1 - 3 Months