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.

Skills you'll gain: Incident Response, Incident Management, Data Centers, Computer Security Incident Management, DevSecOps, Continuous Monitoring, System Monitoring, Threat Detection, Infrastructure Security, IT Security Architecture, Security Management, Payment Card Industry (PCI) Data Security Standards, Data Security, Information Systems Security, IT Infrastructure, Security Information and Event Management (SIEM), Security Testing, DevOps, System Configuration, IT Automation
Beginner · Course · 1 - 3 Months
LearnQuest
Skills you'll gain: Closing (Sales), Sales Prospecting, Overcoming Objections, Sales, Prospecting and Qualification, Sales Process, Sales Strategy, Customer Relationship Management (CRM) Software, Lead Generation, Digital Brand Strategy, Negotiation, AI Personalization, Marketing Automation, Customer Engagement, Ethical Standards And Conduct, Law, Regulation, and Compliance, Cultural Sensitivity, Key Performance Indicators (KPIs), Cultural Diversity
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Bioinformatics, Image Analysis, Bayesian Statistics, Biostatistics, Data Science, Data-Driven Decision-Making, Data Structures, Statistical Hypothesis Testing, A/B Testing, Reinforcement Learning, Precision Medicine, Statistical Methods, Computer Vision, Algorithms, Statistical Inference, Clinical Trials, Magnetic Resonance Imaging, Program Development, Probability Distribution, Medical Imaging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Exploratory Data Analysis, Data Storytelling, Ggplot2, Data Analysis, Plot (Graphics), R (Software), Regression Analysis, Data Presentation, R Programming, Statistical Analysis, Data Visualization Software, Statistical Visualization, Data Quality, Scatter Plots, Anomaly Detection, Descriptive Statistics, Analytical Skills, Correlation Analysis, Graphing
Beginner · Course · 1 - 4 Weeks

Northeastern University
Skills you'll gain: Database Design, Database Theory, Database Management, Database Development, Database Systems, Relational Databases, Databases, Database Management Systems, SQL, NoSQL, Data Modeling, Unified Modeling Language, Query Languages, Data Integrity, Data Manipulation, Performance Tuning
Mixed · Course · 1 - 3 Months

Logical Operations
Skills you'll gain: Excel Macros, Microsoft Excel, Excel Formulas, Data Transformation, Data Import/Export, File I/O, Data Wrangling, Extensible Markup Language (XML), Data Manipulation, Visual Basic (Programming Language), Spreadsheet Software, Automation, Microsoft 365, Microsoft Office, Data Science, Query Languages, File Management, Debugging, Performance Improvement, Computer Programming
Intermediate · Specialization · 3 - 6 Months

Google Cloud
Skills you'll gain: Dataflow, Data Pipelines, Serverless Computing, Data Processing, Real Time Data, Cloud Security, Identity and Access Management, Debugging, Data Security, Google Cloud Platform, System Monitoring, Site Reliability Engineering, Code Reusability, Data Integrity, Data Transformation, CI/CD, Interoperability, Containerization, Data Storage Technologies, Jupyter
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Excel, Data Presentation, Interactive Data Visualization, Data Storytelling, Predictive Modeling, Data Visualization Software, Dashboard Creation, Data Synthesis, Spreadsheet Software, Microsoft Copilot, Excel Formulas, Data Analysis, Data-Driven Decision-Making, Forecasting, Prompt Engineering, Data Manipulation, Data Transformation
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Sheets, Data Sharing, Google Cloud Platform, Spreadsheet Software, Big Data, Data Import/Export, Data Analysis, Data Analysis Software, Real Time Data, Cloud Computing
Beginner · Project · Less Than 2 Hours

Skills you'll gain: Data-Driven Marketing, Spreadsheet Software, Marketing Analytics, Pivot Tables And Charts, Trend Analysis, Marketing Budgets, Marketing Strategies, Microsoft Excel, Google Sheets, Business Reporting, Data-Driven Decision-Making, Performance Reporting, Excel Formulas, Time Series Analysis and Forecasting, Strategic Marketing, Descriptive Analytics, Performance Metric, Business Metrics, Performance Measurement, Strategic Decision-Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Model Deployment, Generative AI, Data Wrangling, Project Planning, Responsible AI, Data Preprocessing, Model Training, Generative Model Architectures, Governance, Exploratory Data Analysis, Applied Machine Learning, Large Language Modeling, Data Presentation, Machine Learning Software, Prompt Engineering, Model Evaluation, Feature Engineering, Fine-tuning
Intermediate · Course · 1 - 3 Months

Skills you'll gain: File I/O, Test Data, Test Case, Data Validation, Test Script Development, Verification And Validation, Data Cleansing, Python Programming
Intermediate · Guided Project · Less Than 2 Hours