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.

Coursera
Skills you'll gain: Google Ads, Campaign Planning, Online Advertising, Search Engine Marketing, Campaign Management, Keyword Research, Marketing Budgets, Advertising Campaigns, Advertising, Pay Per Click Advertising, Marketing, Bidding, Digital Marketing, Paid media, Budget Management
Beginner · Guided Project · Less Than 2 Hours

École Polytechnique Fédérale de Lausanne
Skills you'll gain: Programming Principles, Java Programming, Java, Computer Programming, Code Reusability, Data Structures, Object Oriented Programming (OOP), Computational Logic, Program Development, Problem Solving, Algorithms, Eclipse (Software)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Fraud detection, Marketing Analytics, Data-Driven Marketing, Predictive Modeling, People Analytics, Customer Analysis, Feature Engineering, Marketing Effectiveness, Exploratory Data Analysis, Anomaly Detection, Customer Retention, Advanced Analytics, Marketing Strategies, Loss Prevention, Predictive Analytics, Statistical Analysis, Analytics, R Programming, R (Software), Analytical Skills
Beginner · Specialization · 1 - 3 Months

University of Geneva
Skills you'll gain: Infectious Diseases, Environmental Science, Infection Control, Natural Resource Management, Epidemiology, Environmental Resource Management, Environment, Public Health and Disease Prevention, Sustainable Systems, Health Promotion, Social Determinants Of Health, Sustainable Development, Public Health, Environment Health And Safety, Health Disparities, Climate Change Adaptation, Health Policy, Nutrition and Diet, Data Collection
Intermediate · Course · 1 - 3 Months

Skills you'll gain: NIST 800-53, Risk Management Framework, Cyber Risk, Federal Information Security Management Act, Systems Development Life Cycle, Cybersecurity, Continuous Monitoring, Security Management, Cyber Governance, Cyber Security Strategy, Security Controls, Infrastructure Security, Cyber Security Assessment, Incident Response, Authorization (Computing), Security Requirements Analysis, Cyber Security Policies, Information Assurance, Information Systems Security, Information Privacy
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Stata, STATA (Software), Scripting, Plot (Graphics), Statistical Visualization, Data Visualization, Graphing, Data Visualization Software, Data Manipulation, Statistical Methods, Data Analysis, Data Management, Statistical Programming, Data Presentation, Debugging, Data Import/Export, Data Integrity
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storage, OSI Models, General Networking, Wireless Networks, Data Storage Technologies, Local Area Networks, Networking Hardware, Computer Networking, Network Architecture, Network Model, Network Infrastructure, TCP/IP, Network Planning And Design, Telecommunications, Network Protocols, Microsoft Windows, Network Troubleshooting, Network Security, Wide Area Networks, Command-Line Interface
Beginner · Course · 1 - 3 Months

Skills you'll gain: Game Design, Human Computer Interaction, Program Development, Code Reusability, Python Programming, Programming Principles, Computer Programming, Mathematical Software, Data Analysis
Beginner · Guided Project · Less Than 2 Hours
University of Michigan
Skills you'll gain: Django (Web Framework), Application Development, Web Development, Application Deployment, Database Design, Web Applications, Back-End Web Development, Authentications, Object-Relational Mapping, Hypertext Markup Language (HTML), Data Modeling, UI Components, Relational Databases, Python Programming, Data Validation, User Accounts, Network Protocols, User Interface (UI) Design
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Descriptive Statistics, A/B Testing, Classification And Regression Tree (CART), Dashboard, Dashboard Creation, Model Evaluation, Model Deployment, Data-Driven Decision-Making, Risk Analysis, Histogram, Statistical Inference, Descriptive Analytics, Simulations, Predictive Modeling, Regression Analysis, Data Visualization, MLOps (Machine Learning Operations), Decision Making, Decision Tree Learning, Keras (Neural Network Library)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Responsible AI, Legal Technology, Arbitration, Legal Research, AI literacy, Client Services, Litigation Support, Mediation, Legal Strategy, Generative AI, Litigation and Civil Justice, Legal Support, AI Integrations, LLM Application, AI Workflows, Document Management, Automation
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Ethics, Data Validation, Generative AI, Prompt Engineering, Data Cleansing, Data Quality, Data Preprocessing, Large Language Modeling, Text Mining, Hugging Face, Data Collection, Quality Assurance, Unstructured Data, Fine-tuning, Data Transformation, Data Pipelines
Intermediate · Course · 1 - 4 Weeks