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.

California Institute of the Arts
Skills you'll gain: Information Architecture, Wireframing, User Interface and User Experience (UI/UX) Design, Persona (User Experience), User Experience, Mockups, User Experience Design, UI/UX Strategy, Responsive Web Design, Web Design, User Interface (UI), User Interface (UI) Design, Adobe XD, User Centered Design, Interaction Design, Prototyping, Web Design and Development, Visual Design, Graphic Design, User Research
★ 4.7 (8.1K) · Beginner · Specialization · 3 - 6 Months

Università Bocconi
Skills you'll gain: Private Equity, Business Valuation, Investment Management, Entrepreneurial Finance, Capital Markets, Mergers & Acquisitions, Investments, Equities, Portfolio Management, Financial Management, Tax Management, Tax Laws, Entrepreneurship, Financial Regulation, Due Diligence, Fundraising, Contract Negotiation, Cash Flows, Governance
★ 4.8 (9.5K) · Mixed · Course · 1 - 3 Months

MedCerts
Skills you'll gain: Sterilization, Medical Terminology, Infection Control, Asepsis, Pathology, Hand Hygiene, Sterile Procedure, Anatomy, Occupational Safety and Health Administration (OSHA), Health And Safety Standards, Sanitation, Medical History Documentation, Diagnostic Tests, Safety Standards, Physiology, Patient Communication, Infectious Diseases
★ 4.9 (35) · Beginner · Course · 1 - 4 Weeks
University of California, Santa Cruz
Skills you'll gain: Programming Principles, Program Development, Computational Logic, Memory Management
★ 4.5 (6.8K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Financial Statements, Microsoft Excel, Excel Formulas, Balance Sheet, Ledgers (Accounting), Financial Statement Analysis, Financial Data, Income Statement, Bookkeeping, Data Entry, Financial Reporting, Financial Accounting, Profit and Loss (P&L) Management, Spreadsheet Software, Month End Closing
★ 4.5 (879) · Intermediate · Guided Project · Less Than 2 Hours
Duke University
Skills you'll gain: Sensory Systems Analysis, Neurology, Physiology, Anatomy, Life Sciences, Electrophysiology, Cell Biology, Psychology, Pathology, Molecular Biology, Substance Abuse
★ 4.9 (3.1K) · Advanced · Course · 3 - 6 Months

Skills you'll gain: Multimodal Prompts, Prompt Engineering, Prompt Engineering Tools, Prompt Patterns, Responsible AI, AI literacy, Context Engineering
★ 4.8 (4.3K) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Revenue Recognition, Peer Review, Credit Risk, Mergers & Acquisitions, Financial Analysis, Accrual Accounting, Financial Statements, Investment Management, Accruals, Cash Flows, Accounting, Corporate Finance, Financial Statement Analysis, Financial Accounting, Finance, Financial Modeling, Return On Investment, Investments, Financial Management, Risk Management
★ 4.7 (7K) · Intermediate · Specialization · 3 - 6 Months
Michigan State University
Skills you'll gain: Photography, Peer Review, Photo/Video Production and Technology, Image Quality, Creativity
★ 4.8 (5.3K) · Mixed · Course · 1 - 4 Weeks
Skills you'll gain: Data Storytelling, Data Ethics, Data Analysis, Data-Driven Decision-Making, Analytics, Workflow Management, Data Science, Advanced Analytics, Analytical Skills, Business Solutions, Technical Communication, Process Design, Project Management, Communication, Stakeholder Communications, Machine Learning
★ 4.7 (4K) · Advanced · Course · 1 - 3 Months
Skills you'll gain: Debugging, Python Programming, Cybersecurity, Programming Principles, File I/O, IT Automation, Data Import/Export, Algorithms, Automation, Program Development, Computer Programming, File Management, Maintainability
★ 4.8 (3.6K) · Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Blockchain, Cryptography, Transaction Processing, Cryptographic Protocols, Network Protocols, Payment Systems, Distributed Computing, Virtual Environment, Data Integrity, Virtual Machines, Algorithms, Verification And Validation, User Accounts
★ 4.6 (7.8K) · Beginner · Course · 1 - 4 Weeks