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.

Johns Hopkins University
Skills you'll gain: Social Determinants Of Health, Health Promotion, Mitigation, Blood Pressure, Nutrition Education, Public Health and Disease Prevention, Public Health, Epidemiology, Nutrition and Diet, Policy Development, Health Policy, Public Policies, Policy Analysis, Program Evaluation, Physiology, Law, Regulation, and Compliance, Cardiology, Case Studies
Beginner · Course · 1 - 3 Months

Skills you'll gain: HTML and CSS, Hypertext Markup Language (HTML), Responsive Web Design, Web Design, Cascading Style Sheets (CSS), Web Design and Development, Interaction Design, Usability, User Centered Design, User Interface (UI) Design, Persona (User Experience), Design Elements And Principles, Adobe Photoshop, Figma (Design Software)
Intermediate · Guided Project · Less Than 2 Hours
Sungkyunkwan University
Skills you'll gain: Data Processing, Data Preprocessing, Portfolio Management, Investment Management, Machine Learning Methods, Classification And Regression Tree (CART), Investments, Machine Learning Algorithms, Applied Machine Learning, R Programming, Feature Engineering, Machine Learning, Financial Modeling, Predictive Modeling, Decision Tree Learning, Model Optimization, Asset Management, Statistical Programming
Intermediate · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Graphic and Visual Design, Graphic Design, Layout Design, Visual Design, Design, Design Elements And Principles, Design Strategies, Visual Storytelling
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Instagram, Content Scheduling, Social Media Content, Content Strategy, Social Media, Content Development and Management, Video Production, Content Creation, Social Media Marketing, Workflow Management, Drive Engagement, Ideation, Editing
Mixed · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Project Estimation, Project Schedules, Stakeholder Management, Work Breakdown Structure, Project Scoping, Stakeholder Engagement, Project Management, Scheduling, Project Planning, Stakeholder Analysis, Scope Management, Agile Project Management, Project Risk Management, Time Management, Team Leadership, Leadership, Leadership Development, Microsoft Word, Microsoft Office, Microsoft Excel
Mixed · Course · 1 - 3 Months

Skills you'll gain: Web Applications, Web Development, Web Development Tools, HTML and CSS, JavaScript Frameworks, OAuth, UI Components, Frontend Integration, Front-End Web Development, Authentications, React.js, Development Environment, Javascript, Software Installation, Cascading Style Sheets (CSS)
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Data Entry, Data Validation, Data Integrity, Data Capture, Data Processing, Data Management, Spreadsheet Software
Beginner · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Manipulation, Data Wrangling, Data Preprocessing, Data Analysis, Python Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsive Web Design, HTML and CSS, Web Design, Cascading Style Sheets (CSS), Hypertext Markup Language (HTML), Bootstrap (Front-End Framework), UI Components, Front-End Web Development, Usability, User Interface (UI), Interactive Design, Javascript, Creative Design, Graphic and Visual Design, Web Design and Development, Typography, Frontend Performance, Web Analytics and SEO, Web Development, Web Content Accessibility Guidelines
Beginner · Specialization · 3 - 6 Months

Amazon Web Services
Skills you'll gain: VPN Clients, Virtual Private Networks (VPN), Amazon Web Services, Network Protocols, Network Security, Remote Access Systems, Virtual Networking, Command-Line Interface, Control Panels, End User Training and Support, Endpoint Security
Mixed · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Seaborn, NumPy, Matplotlib, Data Transformation, Data Manipulation, Data Visualization Software, Pandas (Python Package), Plot (Graphics), Data Visualization, Jupyter, Scatter Plots, Data Science, Data Processing, Data Analysis, Box Plots, Python Programming, Graphing, Computer Programming, Computer Programming Tools, Software Development
Intermediate · Specialization · 1 - 3 Months