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.

The University of Edinburgh
Skills you'll gain: Ethical Standards And Conduct, Behavior Management, Sensory Systems Analysis, Human Learning, Endocrinology, Biology
★ 4.8 (1.2K) · Mixed · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Text Mining, Natural Language Processing, Data Mining, Unstructured Data, Big Data, Applied Machine Learning, Data Engineering, Web Scraping, AI Personalization, Model Evaluation, Machine Learning Algorithms, Web Analytics and SEO, Machine Learning, Model Optimization, Network Analysis, Statistical Methods, Statistical Modeling, Probability & Statistics
★ 4.5 (965) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Azure Synapse Analytics, Microsoft Azure, Power BI, Databricks, Data Processing, Database Administration, Data Warehousing, Database Theory, Databases, Cloud Services, Data Architecture, NoSQL, Database Software, Relational Databases, Database Systems, Cloud Storage, Database Management Systems, MySQL, Data Store, SQL
★ 4.6 (926) · Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: R (Software), Tidyverse (R Package), Web Scraping, Data Manipulation, Data Wrangling, R Programming, Data Transformation, Memory Management, Data Cleansing, Data Science, Statistical Programming, Data Integration, Data Processing, grep, Text Mining, Data Import/Export, Web Services, Data Analysis, Data Structures
★ 4.3 (1.2K) · Intermediate · Course · 1 - 3 Months
Skills you'll gain: Blockchain, Digital Assets, FinTech, Business Planning, Plan Execution, Agentic systems, Strategic Thinking, Business Strategy, Strategic Decision-Making, Payment Systems, Governance, Financial Inclusion, Financial Services, Strategic Partnership, Financial Regulation, Ledgers (Accounting), Work Breakdown Structure, Cryptography, Emerging Technologies, Stakeholder Analysis
★ 4.7 (1K) · Beginner · Specialization · 3 - 6 Months

Imperial College London
Skills you'll gain: Epidemiology, Diagnostic Tests, Clinical Trials, Research Design, Public Health and Disease Prevention, Clinical Research, Public Health, Preventative Care, Data Collection, Research Methodologies, Infectious Diseases, Program Evaluation, Science and Research, Research, Risk Analysis, Quantitative Research, Correlation Analysis, Medical Science and Research, Health Policy, Statistical Analysis
★ 4.8 (1.3K) · Beginner · Specialization · 1 - 3 Months
Skills you'll gain: Statistical Hypothesis Testing, Statistical Methods, Sample Size Determination, Statistical Inference, Estimation, Business Analytics, Statistics, Probability & Statistics, Sampling (Statistics), Statistical Analysis, Microsoft Excel, Excel Formulas, Probability Distribution, Data Analysis
★ 4.8 (1.3K) · Mixed · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Insurance, Insurance Policies, Risk Management, Long Term Care, Wealth Management, Disabilities, Financial Planning, Health Policy, Health Care, Case Studies
★ 4.9 (9) · Beginner · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Investment Management, Finance, Investments, Business Valuation, Portfolio Management, Financial Modeling, Financial Market, Equities, General Finance, Return On Investment, Regression Analysis, Portfolio Risk, Asset Management, Microsoft Excel, Risk Analysis, Performance Analysis, Cash Flows
★ 4.7 (941) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Programming Principles, C++ (Programming Language), C and C++, Computer Programming, Computational Logic, Computer Science
★ 4.6 (975) · Beginner · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Research, Science and Research, Liberal Arts, General Science and Research, Scientific Methods, Physical Science, Physics, Research Methodologies
★ 4.7 (963) · Mixed · Course · 1 - 3 Months

Yale University
Skills you'll gain: Behavioral Economics, Storytelling, Economics, Economics, Policy, and Social Studies, Financial Forecasting, Forecasting, Socioeconomics, Social Studies, Market Dynamics, Consumer Behaviour, Automation
★ 4.8 (914) · Beginner · Course · 1 - 4 Weeks