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: Control Systems, Programmable Logic Controllers, Animations, Human Machine Interfaces, UI Components, Real-Time Operating Systems, Control Panels, Interactive Design, Code Reusability, Program Development, Electronic Hardware, Simulations, Interactive Data Visualization, System Monitoring, Automation Engineering, System Configuration, Machine Controls, Plant Operations and Management, Computer Hardware, Network Troubleshooting
★ 4.7 (24) · Intermediate · Specialization · 3 - 6 Months

Digital Marketing Institute
Skills you'll gain: Social Media Marketing, Social Media, Social Media Content, Social Media Strategy, Social Media Management, Social Media Analytics, Social Media Campaigns, Content Marketing, Instagram, Digital Media Strategy, Digital Advertising, Facebook, Digital Marketing, Paid media, Content Creation, Content Strategy, Earned Media, Customer Engagement
★ 4.4 (119) · Beginner · Course · 1 - 4 Weeks

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Payroll, Payroll Administration, Payroll Processing, Payroll Reporting, Payroll Tax, Labor Compliance, Compensation Management, Labor Law, Benefits Administration, Compensation and Benefits, Payment Systems, Employee Onboarding, Benefits Enrollment Processes, Income Tax, Tax Compliance, Problem Solving, Critical Thinking
★ 4.8 (62) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Object Oriented Design, Object Oriented Programming (OOP), File I/O, Encryption, Cryptographic Protocols, Data Structures, Program Development, Software Development, Model Evaluation, Automation, Model Training, Machine Learning Algorithms, Database Application, Plot (Graphics), Python Programming, Algorithms, Software Installation, Code Reusability, Functional Design
★ 4.7 (105) · Beginner · Specialization · 3 - 6 Months

Universidad Nacional Autónoma de México
Skills you'll gain: Android Development, Mobile Development, Android Studio, Android (Operating System), Data Persistence, Application Development, Data Storage Technologies, Data Store, User Interface (UI) Design, UI Components, Data Storage, User Interface (UI), Application Lifecycle Management, Authorization (Computing), Data Access, Database Management
★ 4.3 (334) · Intermediate · Course · 1 - 3 Months

Peking University
Skills you'll gain: C (Programming Language), Data Structures, Programming Principles, Object Oriented Programming (OOP), Computer Programming, Algorithms, Memory Management
★ 4.9 (827) · Mixed · Course · 1 - 3 Months

Universidad Austral
Skills you'll gain: Technical Analysis, Investments, Blockchain, Digital Assets, Portfolio Management, Investment Management, Key Management, FinTech, Financial Trading, Asset Management, Return On Investment, Financial Analysis, Cryptographic Protocols, Market Trend, Market Data, Asset Protection, Operating Cost, Financial Systems
★ 4.8 (121) · Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Estimation, Model Evaluation, Simulation and Simulation Software, Simulations, Laboratory Testing, Matlab, Numerical Analysis, Electric Power Systems, Mathematical Modeling, Model Optimization, Statistical Methods, Mathematical Software, Scripting, Scripting Languages, Algorithms
★ 4.7 (158) · Intermediate · Course · 1 - 3 Months

Columbia University
Skills you'll gain: Value-Based Care, Health Informatics, Care Coordination, Analytics, Health Care Administration, Clinical Data Management, Data Analysis, Interoperability, Data Ethics, Health Systems, Health Technology, Patient-centered Care, Predictive Modeling
★ 4.7 (143) · Beginner · Course · 1 - 3 Months

Skills you'll gain: AI Product Strategy, Product Lifecycle Management, Quality Assurance and Control, Product Quality (QA/QC), Quality Assurance, Product Planning, Product Management, Release Management, Sales Strategy, New Product Development, Quality Monitoring, Performance Analysis, Product Development, Technical Product Management, Promotional Strategies, Performance Measurement, Responsible AI, Marketing Planning, Product Improvement, Product Marketing
★ 4.5 (57) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Large Language Modeling, Fine-tuning, Model Deployment, Transfer Learning, Generative Model Architectures, Model Optimization, Multimodal Prompts, Cloud Deployment, Generative AI, Model Training, Vision Transformer (ViT), Model Evaluation, Reinforcement Learning, Image Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Financial Data, Financial Analysis, Analytics, Data Preprocessing
Intermediate · Course · 1 - 4 Weeks