Skip to content

🇺🇸EN

🇺🇸 EN 🇰🇷 KO 🇯🇵 JA

OIYO blog

Browse by category

Finance 44

Economy at a Crossroads 20
Financial Engineering 12
Introduction to Insurance 10
Alchemy of Wealth: Goals of Finance and Time Value of Money 10
Mastering Technical Analysis 8
Personal Finance Complete Guide 8
Stock Market Investing Guide 8
Advanced Ichimoku Cloud Analysis 5
Fixed Income 5
Bond Portfolio Strategy 5

Exam 37

US CPA Exam Section Strategy 10
ACCA Chartered Accountant 8
AWS Solutions Architect Associate 8
Big Data Analytics 8
CISSP Information Security Professional 8
FRM Financial Risk Manager 8
GMAT Study Guide 8
PMP Project Management Professional 8
US CPA Exam Guide 8
CFA Study Guide 6

Business 18

Essential memorization of business administration: Guide to matching major scholars and theories 21
Marketing Overview 10
HRM Basics 8
Management Core 8
The Art of Negotiation 8
Financial Management Basics 7
Management Science 4
International Trade English 4
Introduction to Financial Management 3
The Complete Communication Skills Guide: The Science of Persuasion, Negotiation, and Presentation 1

Economics 9

Foundations of Economics 27
Introduction to Microeconomics 12
Foundations of Economics 10
Introduction to Behavioral Economics 6
Behavioral Economics 4
The Psychology of Loss Aversion 4
Mathematics for Economics 4
Economics 3
Game Theory in Human Relationships: Finding Win-Win in Conflict 1

Science & Nature 46

Earth & Space Science Primer 6
Introduction to College Biology 4
Geology 3
Antibiotic Resistance: The End of the Golden Age of Medicine? 1
The Great Dance: The Rhythm of Life Created by the Axis and Revolution 1
Autophagy: The Miracle of Your Body Cleaning Itself 1
The Black Hole Deep-Dive: Understanding the Event Horizon, Accretion Disk, and Gravitational Waves 1
Black Holes: Where Time Freezes and Information Vanishes 1
Climate Tipping Points: The Points of No Return 1
The Cosmic Waltz: We Are Eternal Travelers of Time 1

Computer Science 11

AI & Machine Learning Fundamentals 8
Data Structures Fundamentals 8
Python Complete Guide 8
Excel from Basics to Advanced 5
Python Data Analysis Deep Dive 5
AI in Practice 4
Foundations of Computer Systems & Digital World 2
AI at Work by Role 1
Developer Unit Converter 1
AI Tools Productivity Guide 1

Tax 18

Introduction to Taxes 10
Tax Saving Guide 7
Capital Gains Tax 5
Labor Relations & HRM Exam Answer Analysis 2
Korea's Four Social Insurances: A Complete Guide 1
The Complete US Gift Tax Guide: Annual Exclusions, Lifetime Exemption, and Estate Planning 1
Estate Tax Complete Guide: Exemptions, Rates, Strategies, and Key Rules 1
Self-Employment Tax Filing Guide 1
The Complete Guide to the Earned Income Tax Credit 1
Freelancer and Side Hustle Tax Guide 1

Philosophy 34

Buddhism in Modern Terms 4
Sunyata: The Wisdom of Emptiness 1
Confucianism: The Geometry of Human Relationships 1
The Hard Problem: Who is Driving? 1
Gnosticism: The God Beyond God 1
Ikigai: The Reason to Wake Up in the Morning 1
Ikigai Deep Dive: Questions to Discover Your Own Mission 1
Ikigai Foundations: Four Questions to Find Your Life's Passion 1
Ikigai, Fully Explained: The Japanese Wisdom for Finding Your Reason to Live 1
Ikigai Deep Dive: Ten Golden Habits of Okinawan Centenarians 1

Humanities 9

Critical Thinking 8
Introduction to Philosophy 8
The Craft of Writing 8
Dale Carnegie on People and Self-Management 6
Jesa: The Dead Are Not Gone 1
The Complete Guide to Destination Weddings 1
Funeral Etiquette Around the World 1
The Complete Guide to Small Weddings by Country 1
Wedding Etiquette Around the World 1

Education 13

English Grammar 15
TOEIC Strategy 4
Debate & Essay Activities: Beyond Logical Thinking 1
Explaining Activities: Speech as the Path to True Knowledge 1
Havruta in Action: 8 Dialogue Methods to Wake Your Metacognition 1
The Complete Adult English Learning Guide 1
How to Improve Your Memory 1
7 Classroom Activities to Awaken Metacognition: Turning Knowledge into Power 1
Metacognition in the Classroom: The Key to Learning and Growth 1
5 Strategies to Increase Metacognition in Class: Creating a Thinking Classroom 1

History 22

World History 9
The Age of Exploration: How Columbus, da Gama, and Magellan Connected the World 1
Alexander the Great: The Man Who Conquered the Known World at 32 1
The Black Death: The Plague That Killed One Third of Europe 1
The Black Death: How a Plague Saved Europe 1
The Byzantine Empire: One Thousand Years After Rome 1
The Cold War: 45 Years of a War Nobody Fought 1
World History Wrap-Up 1
The Fall of Rome: Are We Next? 1
The French Revolution: Liberty, Equality 1

Law 13

Legal & Tax Practical Guide 9
Property Law 6
The Art of Contracts: Poison Pill Exploration and Defense 4
Korea Railroad Corporation Act: Core Provisions 1
Korean Railway Safety Act (10): Railway Accident Investigation and Reporting 1
Korean Railway Safety Act (4): Types of Railway Driving Licenses, Acquisition, and Training 1
Korean Railway Safety Act (7): Framework Act on the Development of Railroad Industry 1
Korean Railway Safety Act (5): Railway Operation and Composition Principles 1
Korean Railway Safety Act (1): Purpose, Definitions, and National Responsibility 1
Korean Railway Safety Act (2): Safety Management System and Approval Procedures 1

Oiyo Family

OIYO tests ↗ Psychology tests OIYO blog ↗ Courses OIYO game ↗ Games OIYO news ↗ News & AI

Select Language

🇺🇸English 🇰🇷한국어 🇯🇵日本語

Statistics

Comprehensive study guide and lecture series on Statistics.

Descriptive Statistics

10 chapters

Statistics

10 chapters

OIYO blog

Tools Knowledge index

Information

Privacy Policy Terms of Service RSS Sitemap Support OIYO

OIYO family

OIYO tests Psychology tests OIYO blog Courses OIYO game Games OIYO news News & AI

© 2026 Oiyo Tech support@oiyo.net