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.

Johns Hopkins University
Skills you'll gain: Epidemiology, Public Health, Data Presentation, Public Health and Disease Prevention, Trend Analysis, Geographic Information Systems, Health Policy, Data Visualization Software, Chronic Diseases, GIS Software, Health Systems, Infectious Diseases, Biostatistics, Risk Analysis, Investigation, Health Care, Health Disparities, Community Health, Data Analysis, Statistics
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Storytelling, Heat Maps, Data Presentation, Statistical Visualization, Web Content Accessibility Guidelines, Customer Retention, Plot (Graphics), Timelines, Data Visualization Software, Tableau Software, Stakeholder Communications
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Marketing Automation, Lead Generation, Customer Relationship Management (CRM) Software, Brand Awareness, Sales Pipelines, Web Analytics, Customer Acquisition Management, Marketing Operations, Marketing Effectiveness, Social Media, Branding, Performance Analysis, Social Media Management, Brand Management, Business Metrics, Data Capture, Market Research
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Electronic Medical Record System, Medical Records, Electronic Medical Record, Medical Terminology, Medical Office Procedures, Data Entry, Clinical Documentation, Health Information Management, Document Management, File Management, Document Control, Data Capture, Vital Signs
Beginner · Course · 1 - 4 Weeks
University of Toronto
Skills you'll gain: Bioinformatics, Network Analysis, Biostatistics, Molecular Biology, Analysis, Data Visualization Software, Database Software, Health Informatics, Data Analysis, Data Synthesis, Life Sciences, Statistical Methods, Data Mining, Exploratory Data Analysis, Technical Communication, Unsupervised Learning, Data Processing, Tree Maps, Scientific Visualization, Databases
Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: Network Security, Role-Based Access Control (RBAC), Cybersecurity, Firewall, Network Monitoring, Authentications, Virtual Private Networks (VPN), Computer Networking, Authorization (Computing), Intrusion Detection and Prevention, Identity and Access Management, Security Controls, General Networking, Encryption
Beginner · Course · 1 - 3 Months
Skills you'll gain: Electronic Systems, Simulation and Simulation Software, Electronics Engineering, Electrical Engineering, Telecommunications, Engineering, Scientific, and Technical Instruments, Performance Testing, Electronic Components, Technical Design, Wireless Networks, Engineering Analysis, Network Analysis, Design, Design and Product, Grant Applications, Data Management
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Marketing Automation, Marketing Planning, Marketing Analytics, Competitive Analysis, Prompt Engineering, Email Automation, Search Engine Optimization, Generative AI, Key Performance Indicators (KPIs), AI Personalization, Lead Generation, A/B Testing, Content Creation, Web Analytics, Performance Measurement, Data Visualization, Customer Insights, Data-Driven Decision-Making, Digital Marketing, Content Strategy
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Dashboard, Data Storytelling, Data Presentation, Marketing Analytics, Marketing Effectiveness, Key Performance Indicators (KPIs), Data Visualization, Google Analytics, Performance Reporting, Consumer Behaviour, Business Reporting, Stakeholder Engagement, Performance Metric, Data Integration, Decision Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Consultative Selling, Closing (Sales), Sales Management, Communication, Sales Prospecting, Selling Techniques, Sales Presentations, Sales Strategy, Consumer Behaviour, Sales, Sales Presentation, Sales Training, Marketing Psychology, Overcoming Objections, Initiative and Leadership, Solution Selling, Resilience, Sales Process, Persuasive Communication, Sales Support
Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Prometheus (Software), System Monitoring, Grafana, Site Reliability Engineering, Continuous Monitoring, Interactive Data Visualization, Query Languages, Anomaly Detection, Software Visualization, Linux, YAML, Docker (Software), Incident Management, Configuration Management, Real Time Data, Analysis
Advanced · Course · 1 - 4 Weeks

Alex Genadinik
Skills you'll gain: Prioritization, Productivity, Time Management, Professional Development, Personal Development, Stress Management, Strategic Prioritization, Organizational Skills, Business Priorities, Scheduling, Self-Starter, Strong Work Ethic, Decision Making, Data-Driven Decision-Making
Mixed · Course · 1 - 3 Months