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: Consultative Selling, Closing (Sales), Sales Management, Verbal Communication Skills, Communication, Sales Prospecting, Sales Strategy, Consumer Behaviour, Selling Techniques, Sales, Marketing Psychology, Overcoming Objections, Communication Strategies, Initiative and Leadership, Customer Analysis, Sales Presentations, Regional Sales, Prospecting and Qualification, Sales Process, Sales Support
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Extensible Markup Language (XML), Extensible Languages and XML, Cascading Style Sheets (CSS), HTML and CSS, Code Reusability, Data Validation, Data Import/Export, Data Mapping, Verification And Validation, Data Sharing, Hypertext Markup Language (HTML), Interoperability, Computational Logic, Technical Documentation, Data Management, Scripting
★ 4.5 (80) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: 3D Modeling, 3D Assets, Animation and Game Design, Computer Graphics, Visualization (Computer Graphics), Autodesk, Animations, Computer Graphic Techniques, Adobe Photoshop, Photo Editing, Image Quality, Model Optimization, Graphical Tools, Fine-tuning, Color Theory, Layout Design, Editing
★ 5 (17) · Beginner · Specialization · 3 - 6 Months

Amazon Web Services
Skills you'll gain: Amazon Web Services, AWS Identity and Access Management (IAM), Amazon S3, Network Planning And Design, Identity and Access Management, Cloud Solutions, Cloud Management, Cloud Computing, Cloud Computing Architecture, Public Cloud, User Provisioning, Network Architecture, Virtual Networking, Cloud Infrastructure, Cloud Services, User Accounts, Solution Architecture
★ 4.8 (26) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Cryptography, FinTech, Financial Inclusion, Public Key Infrastructure, Cryptographic Protocols, Data Integrity, Business Transformation, Information Privacy, Stakeholder Engagement, Transaction Processing, Governance
★ 4.9 (32) · Beginner · Course · 1 - 3 Months

Board Infinity
Skills you'll gain: Usability Testing, Usability, Human Centered Design, Software Testing, Surveys, User Experience Design, Software Quality (SQA/SQC), Survey Creation, Test Planning, Technical Communication, UI/UX Research, User Research, User Centered Design, Web Content Accessibility Guidelines, Report Writing, User Experience, Risk Management Framework, Stakeholder Engagement, Law, Regulation, and Compliance
★ 3.1 (10) · Advanced · Specialization · 1 - 3 Months

Skills you'll gain: Hardening, Performance Tuning, Systems Analysis, Virtual Environment, Virtualization and Virtual Machines, Operating System Administration, Memory Management, End User Training and Support, Help Desk Support, Debugging, Service Management, User Accounts, OS Process Management, Scripting, Record Keeping, Cloud Deployment
★ 4.3 (12) · Beginner · Specialization · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Epidemiology, Health Disparities, Spatial Data Analysis, Data Visualization, Data Presentation, Public Health, Public Health and Disease Prevention, Health Policy, Data Analysis, Biostatistics, Geospatial Information and Technology, Geospatial Mapping, Analytics, Statistical Analysis, Exploratory Data Analysis, Anomaly Detection, Infectious Diseases, Risk Analysis, Statistical Methods, Microsoft Excel
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Intune (Mobile Device Management Software), Application Deployment, Group Policy, Enterprise Application Management, Cloud Applications, Mobile Security, Azure Active Directory, Identity and Access Management, Microsoft Office, Security Controls, Configuration Management
★ 4.9 (15) · Intermediate · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Digital pedagogy, Technical Communication, Diversity Equity and Inclusion Initiatives, Social Impact, Computational Thinking, Computer Science, Curriculum Development, Informatics, Innovation, Technical Writing
Beginner · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: AI Security, Responsible AI, Information Privacy, Generative AI, Google Cloud Platform, Data Security, Cloud Security, Model Training, Safety and Security
★ 4.3 (13) · Intermediate · Course · 1 - 3 Months

Pearson
Skills you'll gain: Database Design, Relational Databases, SQL, Database Management, Query Languages, Database Theory, Data Management, Database Management Systems, Databases, Database Development, Database Architecture and Administration, Data Integrity, Oracle Databases, Data Modeling, Data Access, Data Analysis, Data Manipulation, Data Structures, User Accounts
Intermediate · Specialization · 1 - 4 Weeks