Data cleaning courses can help you learn techniques for identifying and correcting errors in datasets, handling missing values, and standardizing data formats. You can build skills in data validation, outlier detection, and transforming raw data into a usable format. Many courses introduce tools like Python libraries such as Pandas and NumPy, as well as software like OpenRefine, that support executing data cleaning tasks efficiently and ensuring data quality for analysis.
CertNexus
Skills you'll gain: Data Ethics, Responsible AI, Accountability, Risk Management, Operational Risk, Risk Analysis, Information Privacy, Risk Mitigation, AI Security, Personally Identifiable Information, Safety and Security, Business Ethics, Ethical Standards And Conduct
Beginner · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, LLM Application, Embeddings, Vector Databases, Jupyter
Intermediate · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: AI Orchestration, LangChain, OpenAI API, Generative AI Agents, Prompt Patterns, AI Workflows, Prompt Engineering, Agentic systems, AI Security, Large Language Modeling, Business Logic, File I/O, Transaction Processing, Document Management, Persona Development, Coordination, Plan Execution
Beginner · Course · 1 - 3 Months

Skills you'll gain: Pivot Tables And Charts, Microsoft Excel, Dashboard, Data Presentation, Business Reporting, Interactive Data Visualization, Data Visualization Software, Excel Formulas, Data Import/Export, Data Cleansing, Data Transformation, Data Analysis, Timelines
Intermediate · Course · 3 - 6 Months

University of California San Diego
Skills you'll gain: Algorithms, Program Development, Debugging, Development Testing, Software Testing, Computational Thinking, Test Case, Computer Programming, Programming Principles, Data Structures, Theoretical Computer Science, Design Strategies
Intermediate · Course · 1 - 3 Months

Edureka
Skills you'll gain: Data Storytelling, SQL, Data Engineering, Data Presentation, Key Performance Indicators (KPIs), Star Schema, Dashboard, Data Modeling, Data Quality, Business Analytics, Database Design, Data Mart, Business Intelligence, Data Validation, Analytics, YAML, Data Pipelines, Data Transformation, Performance Tuning, Analysis
Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Linear Algebra, Algebra, Advanced Mathematics, Mathematical Modeling, Engineering Analysis, Applied Mathematics, Mathematical Theory & Analysis, Geometry
Beginner · Course · 1 - 4 Weeks

University of Minnesota
Skills you'll gain: Time Series Analysis and Forecasting, Model Evaluation, Predictive Modeling, Data Preprocessing, Regression Analysis, Microsoft Excel, Forecasting, Excel Formulas, Pivot Tables And Charts, Data Transformation, Statistical Modeling, Trend Analysis, Predictive Analytics, Statistical Methods
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Ads, Search Engine Optimization, Digital Marketing, Keyword Research, Target Audience, Search Engine Marketing, Pay Per Click Advertising, Persona Development, Marketing, Marketing Strategies, Advertising, Customer Engagement, Web Analytics
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Media Planning, Spreadsheet Software, A/B Testing, Return On Investment, Marketing Analytics, Key Performance Indicators (KPIs), Google Analytics, Pivot Tables And Charts, Performance Measurement, Performance marketing, Digital Marketing, Data Presentation, Google Ads, Marketing Budgets, Marketing, Web Analytics and SEO, Data Analysis, Stakeholder Communications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Intrusion Detection and Prevention, Threat Modeling, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Application Security, Encryption, Security Management, Cybersecurity, Vulnerability Scanning, Cyber Security Assessment, Endpoint Detection and Response, Vulnerability Assessments
Beginner · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: NoSQL, Database Systems, MongoDB, Database Management Systems, Databases, Database Design, Relational Databases, Query Languages, Apache Cassandra, Data Storage Technologies, Scalability, Graph Theory, Unstructured Data, Maintainability
Intermediate · Course · 1 - 3 Months