First aid courses can help you learn how to recognize common emergencies, understand basic response principles, and communicate effectively with trained professionals. You can build skills in identifying signs of illness or injury, assessing situations safely, and applying general preparedness concepts. Many courses introduce frameworks, scenario-based learning, and tools that support building confidence in responding to unexpected events.
Skills you'll gain: Quality Management, Project Closure, Scope Management, Team Management, Project Management Life Cycle, Project Management, Project Planning, Agile Project Management, Quality Assurance, Backlogs, Team Leadership, Project Scoping, Stakeholder Analysis, Project Risk Management, Stakeholder Communications, Project Implementation, Quality Assessment, Change Management, Web Presence, Interviewing Skills
★ 4.8 (146K) · Beginner · Professional Certificate · 3 - 6 Months

Multiple educators
Skills you'll gain: Email Security, Digital Forensics, Network Security, Cloud Infrastructure, Incident Response, Cloud Platforms, Business Continuity Planning, Penetration Testing, Business Continuity, Cloud Computing, Relational Databases, Disaster Recovery, Security Controls, Configuration Management, Operating System Administration, General Networking, Cybersecurity, Information Technology, Application Security, Cryptography
★ 4.7 (16K) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Data Storytelling, Data Mining, Extract, Transform, Load, Data Presentation, Data Analysis, Dashboard, Analysis, Analytics, Data Visualization, Big Data, Data Storage Technologies, Analytical Skills, Data Wrangling, Data Science, Data Mart, Data Warehousing, Data Processing, Data Storage, Data Lakes, Microsoft Excel
★ 4.7 (21K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Warehousing, Bash (Scripting Language), Extract, Transform, Load, Package and Software Management, Data Pipelines, Linux Commands, SQL, IBM Cognos Analytics, Shell Script, Apache Kafka, Apache Airflow, IBM DB2, Data Transformation, Data Visualization, Dashboard, Dashboard Creation, Star Schema, Database Management, Relational Databases, Stored Procedure
★ 4.6 (25K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Data Literacy, Data Mining, Big Data, Cloud Computing, Data Science, Digital Transformation, Data-Driven Decision-Making, Data Storage, Deep Learning, Machine Learning
★ 4.7 (78K) · Beginner · Course · 1 - 4 Weeks
Johns Hopkins University
Skills you'll gain: Rmarkdown, Exploratory Data Analysis, R (Software), Version Control, Statistical Analysis, R Programming, Data Manipulation, Data Cleansing, Data Science, Data Visualization, Data Processing, Plot (Graphics), Statistical Programming, Statistical Visualization, Ggplot2, Knitr, Data Sharing, Statistical Reporting, GitHub, Machine Learning
★ 4.6 (48K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Threat Modeling, Network Security, Vulnerability Management, Intrusion Detection and Prevention, Hardening, Incident Response, Threat Management, Cybersecurity, Network Protocols, Threat Detection, Cloud Security, Vulnerability Assessments, Network Architecture, Computer Security Incident Management, Operating Systems, Debugging, Linux, Web Presence, Python Programming, SQL
★ 4.8 (70K) · Beginner · Professional Certificate · 3 - 6 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Data-Driven Marketing, Digital Marketing Campaigns, Customer Engagement, Journey Mapping, Digital Marketing Tools, Direct Marketing, Online Advertising, Digital Advertising, Social Media Campaigns, Cross-Channel Marketing, MarTech, Data Architecture, Social Media Marketing, Promotional Strategies, Marketing Channel, Customer Insights, Digital Transformation, Emerging Technologies, Experimentation, Data Visualization
★ 4.7 (23K) · Beginner · Specialization · 3 - 6 Months

L&T EduTech
Skills you'll gain: Fire And Life Safety, Building Codes, Construction, Safety Standards, Building Services Engineering, Building Design, Engineering Drawings, Safety and Security, Structural Analysis, Hydraulics, Systems Integration, Engineering Calculations, Emergency Response, Technical Standard
★ 4.6 (137) · Intermediate · Specialization · 3 - 6 Months

Rice University
Skills you'll gain: Medical Terminology, Pulmonology, Cardiology, Medical Records, Electronic Medical Record System, Endocrinology, Human Musculoskeletal System, Orthopedics, Obstetrics And Gynecology, Neurology, Gynecology, Urology, Hematology, Anatomy, Immunology, Diagnostic Tests, Patient Treatment, Psychiatry, Communication
★ 4.9 (1.1K) · Beginner · Specialization · 3 - 6 Months

University of Michigan
Skills you'll gain: Wireframing, Responsive Web Design, HTML and CSS, Hypertext Markup Language (HTML), Web Content Accessibility Guidelines, Cascading Style Sheets (CSS), Web Design, Javascript, Bootstrap (Front-End Framework), Web Design and Development, Debugging, Web Language, Front-End Web Development, Verification And Validation, Web Development, Interactive Design, Event-Driven Programming, Development Testing, Application Frameworks, Code Review
★ 4.7 (36K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Medical Terminology, Pulmonology, Endocrinology, Cardiology, Physiology, Neurology, Diagnostic Tests, Human Musculoskeletal System, Pathology, Anatomy, General Medical Tests and Procedures, Medical Records, Cardiac Dysrhythmia, Cell Biology, Immunology, Hematology, Laboratory Testing, Nutrition and Diet, Oncology
★ 4.7 (292) · Beginner · Specialization · 3 - 6 Months