Object-oriented design interviews have become increasingly popular in technical hiring. This shift reflects companies' growing emphasis on skills that align with real-world software development. OOD interviews are important at companies like Amazon, Bloomberg, and Uber, serving as a practical coding exercise. These interviews test your ability to build logical, maintainable systems and gauge how effectively you apply object-oriented design principles and patterns. This book helps you prepare with the most up-to-date view on OOD interviews. It covers the basics, a complete walkthrough, and examples of common OOD problems with solutions. What's inside? - An insider's take on what interviewers really look for and why. - A 4-step framework for solving any object-oriented design interview question. - 11 real object-oriented design interview questions with detailed solutions. - 133 detailed diagrams explaining system architectures and workflows. Table of Contents Chapter 1 What is an Object-Oriented Design (OOD) Interview? Chapter 2 A Framework for the OOD Interview Chapter 3 OOP Fundamentals Chapter 4 Parking Lot System Chapter 5 Movie Ticket Booking System Chapter 6 Unix File Search System Chapter 7 Vending Machine System Chapter 8 Elevator System Chapter 9 Grocery Store System Chapter 10 Tic-Tac-Toe Game Chapter 11 Blackjack Game Chapter 12 Shipping Locker System Chapter 13 Automated Teller Machine (ATM) System Chapter 14 Restaurant Management System