[PDF] The System Design Interview 2nd Edition Free Download


The System Design Interview, by Lewis C. Lin and Shivam P. Patel, is a comprehensive book that provides the necessary knowledge, concepts, and skills to pass your system design interview.

It’s written by industry professionals from Facebook & Google. Get their insider perspective on the proven, practical techniques for answering system design questions like Design YouTube or Design a TinyURL solution.

Unlike others, this book teaches you exactly what you need to know.


The book revolves around an effective six-step process called PEDALS:

  • Process Requirements
  • Estimate
  • Design the Service
  • Articulate the Data Model
  • List the Architectural Components
  • Scale

PEDALS demystifies the confusing system design interview by breaking it down into manageable steps. It’s almost like a recipe: each step adds to the next. PEDALS helps you make a clear progression that starts from zero and ends with a functional, scalable system.

The book explains how you can use PEDALS as a blueprint for acing the system design interview.

The book also includes detailed examples of how you can use PEDALS for the most popular system design questions, including:

  • Design YouTube
  • Design Twitter
  • Design AutoSuggest
  • Design a TinyURL solution


  • What to expect and what interviewers look for in an ideal answer
  • How to estimate server, storage, and bandwidth needs
  • How to design data models and navigate discussions around SQL vs. NoSQL
  • How to draw architecture diagrams
  • How to build a basic cloud architecture
  • How to scale a cloud architecture for millions of users
  • Learn the best system strategies to reduce latency, improve efficiency, and maintain security
  • Review of technical concepts including CAP Theorem, Hadoop, and Microservices


I just wanted to say that I got the Amazon Senior SDE job offer. I’ve failed the system design interview several times, and your material is the best resource out there. – Beto A., Senior SDE

Just finished the dreaded Facebook Pirate interview. I used a modified version of PEDALS, and I had him grinning from ear to ear. – Jesse T., Software Engineer

My recruiter just gave me the Google role, and I accept!!! I couldn’t have made it through the technical round without PEDALS and your system design material. – Priya D., Product Manager


Product information

Publisher‏:‎Independently published (May 17, 2021)
Paperback‏:‎249 pages
Item Weight‏:‎13.1 ounces
Dimensions‏:‎6 x 0.63 x 9 inches

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1 Comment
  1. random152 says

    Hi Kathie, The link its not working, could you please re-upload it?

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