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: Prompt Engineering, Keyword Research, Prompt Engineering Tools, Content Optimization, Google Gemini, Generative AI, Search Engine Optimization, Content Development and Management, AI Integrations, Content Strategy, AI Workflows, Digital Marketing
★ 4.9 (8) · Beginner · Course · 1 - 4 Weeks

Board Infinity
Skills you'll gain: Angular, Web Design and Development, Front-End Web Development, Responsive Web Design, React.js, JavaScript Frameworks, Web Development, Frontend Integration, Application Frameworks, UI Components, User Interface (UI), Event-Driven Programming, Maintainability
★ 4.4 (12) · Intermediate · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Payment Systems, Risk Analysis, Blockchain, Risk Management Framework, Risk Management, FinTech, Market Liquidity, Cyber Risk, Financial Systems, Financial Regulation, Digital Assets, Bank Regulations, Liquidation, Distributed Denial-Of-Service (DDoS) Attacks, Financial Analysis, Regulatory Compliance, Asset Management, Agentic systems, Governance, Market Dynamics
★ 5 (23) · Beginner · Course · 1 - 3 Months

Ball State University
Skills you'll gain: Rmarkdown, Exploratory Data Analysis, Data Visualization Software, Ggplot2, Interactive Data Visualization, Plot (Graphics), Statistical Visualization, R (Software), R Programming, Data Storytelling, Histogram, Scatter Plots, Graphing, Data Analysis, Analysis, Color Theory
★ 3.6 (9) · Intermediate · Course · 1 - 3 Months

University of Michigan
Skills you'll gain: Interactive Data Visualization, Interactive Design, Programming Principles, Visualization (Computer Graphics), Python Programming, Graphic and Visual Design, Event-Driven Programming, Digital Design, Computer Graphics, Computational Logic, Computer Graphic Techniques, Computational Thinking, File I/O, Data Structures, Animations, Image Analysis
★ 5 (7) · Beginner · Course · 1 - 3 Months

STARWEAVER
Skills you'll gain: Financial Statements, Financial Modeling, Business Valuation, Financial Analysis, Financial Statement Analysis, Income Statement, Gross Profit, Microsoft Excel, Accounting, Bookkeeping, Balance Sheet, Investment Management, General Accounting, Business Metrics, Finance, Cash Flows, Strategic Decision-Making, Portfolio Risk, Excel Formulas, Revenue Forecasting
★ 4.3 (6) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Angular, Bootstrap (Front-End Framework), JavaScript Frameworks, Authentications, Web Applications, Web Design and Development, Role-Based Access Control (RBAC), Responsive Web Design, UI Components, Code Reusability, User Interface (UI), Model View Controller, Data Validation, Software Testing, Data Management
★ 4.6 (27) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: MySQL Workbench, MySQL, Database Management Systems, Database Software, Database Management, Data Manipulation, Data Management, SQL, Databases, Information Management, Query Languages, Data Integration, Data Science
★ 4.6 (21) · Beginner · Guided Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Ggplot2, Plot (Graphics), Data Visualization, Interactive Data Visualization, Statistical Visualization, Data Visualization Software, Exploratory Data Analysis, Data Presentation, R (Software), Scatter Plots, Tidyverse (R Package), R Programming, Box Plots, Graphing, Histogram, Data Wrangling, Data Manipulation
★ 4.7 (20) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Electrical Systems, Embedded Software, Electric Power Systems, Engineering Software, Power Electronics, Hardware Troubleshooting, Software Systems, Systems Architecture, Electrical Engineering, Systems Integration, Debugging, Control Systems
★ 4.6 (11) · Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Legal Technology, Document Management, Generative AI, AI Workflows, Compliance Management, AI Integrations, Contract Management, Automation, Contract Review
★ 3.6 (14) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Root Cause Analysis, Correlation Analysis, Regression Analysis, Statistical Methods, Statistics, Data Collection, Descriptive Statistics, Statistical Hypothesis Testing, Data Literacy, Probability & Statistics, Statistical Analysis, Process Analysis, Six Sigma Methodology, Lean Six Sigma, Quantitative Research, Business Process Improvement, Data Analysis, Process Improvement, Statistical Inference, Operational Efficiency
★ 4.2 (18) · Beginner · Course · 1 - 4 Weeks