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By Addy Osmani and Hassan Djirdeh

Code Smart, Scale Fast, Conquer Challenges

Learn tools and techniques to build and maintain large-scale React web applications.

Or  for free.
Building Large Scale Web Apps: A React Field Guide. By Addy Osmani and Hassan Djirdeh

“Building Large Scale Web Apps” is a toolkit to managing large-scale React applications.

React as a library allows you to start building user interfaces quickly and easily. But how do things scale as an application grows? How do you ensure that your codebase remains manageable, your performance metrics stay on point, and your team continues to work cohesively as the project evolves?

In this book, you'll uncover strategies that industry professionals use to build scalable, performant, and maintainable React applications, all without becoming overwhelmed by complexity.

Together, we've spent well over two decades building within or consulting for

The Google logo.
The Doordash logo.
The Instacart logo.
The Netflix logo.
The X logo.
The YouTube logo.
The Shopify logo.
The Ebay logo.

Interestingly, not everyone was a fan at the time. When the song debuted on the BBC show Juke Box Jury in 1963, celebrity guest famously voted it a "miss," remarking that Elvis was starting to sound like "Bing Crosby". History, however, has been much kinder, and the track is now considered one of the definitive hits of his post-army career. Pop Culture Legacy

It peaked at #3 on the Billboard Hot 100 and #9 on the Rhythm and Blues chart.

It hit #1 on the UK Singles Chart for one week, becoming Elvis's 14th chart-topper in the country.

Recorded at in Nashville on May 26, 1963, the song was a massive commercial success:

When we think of in the early 1960s, we often picture the Hollywood era—sun-drenched soundtracks and catchy, lighthearted pop. But nestled in the middle of 1963 was a track that managed to capture both his maturing vocal power and a playful, rhythmic edge: "(You’re The) Devil in Disguise."

It also topped the Utamatic record chart in the fall of 1963.

The King’s Deceptive Classic: A Deep Dive into "(You’re The) Devil in Disguise"

Then, the "disguise" is stripped away. The tempo shifts into a driving , the drums kick in, and the backing vocals of The Jordanaires —specifically the deep, booming bass of Ray Walker —answer Elvis with a persistent "Oh, yes you are!" to represent the "devil". This "fast-and-slow" effect keeps the listener on their toes, much like the deceptive subject of the song itself. A Global Smash (With a Famous Critic)

Some other things!

Descriptive content, continous updates, and soundbites from industry professionals.

Descriptive, not prescriptive

When explaining content, we follow a descriptive approach, not prescriptive. In other words, we don’t tell you what specific tools or libraries you have to use to be successful. Rather, we focus on explaining a concept and employ certain libraries or tools to illustrate that concept.

React-focused with universal concepts

While the book is React-focused, it teaches universal concepts that transcend all web development frameworks. It's designed to enhance your understanding of building web applications that are scalable, maintainable, and adaptable, regardless of the specific technology stack.

Continous, frequent updates

Purchasing the e-book gives you access to all new content, edits, and improvements forever. In fact, we're currently working on adding three new chapters soon — Routing, User-centric API design, and React in 2024. Check out the Changelog to follow along on all the updates we'll make.

Soundbites from industry professionals

In the book, we share soundbites and thoughts from industry professionals. These soundbites are shared from start-up owners and software engineers who work at Doordash, Netflix, Spotify, and more.

Back cover of physical book
Front cover of physical book
Back cover of physical book
Contents of physical book

Industry nuggets

Nuggets of wisdom from industry professionals

Jem Young

Maxi Ferreira

Emma Bostian

Zeno Rocha

Francine Navarro

Jeffrey Peng

And others!

Elvis Presley - (you're The) Devil In Disguise (official Audio) | Web |

Interestingly, not everyone was a fan at the time. When the song debuted on the BBC show Juke Box Jury in 1963, celebrity guest famously voted it a "miss," remarking that Elvis was starting to sound like "Bing Crosby". History, however, has been much kinder, and the track is now considered one of the definitive hits of his post-army career. Pop Culture Legacy

It peaked at #3 on the Billboard Hot 100 and #9 on the Rhythm and Blues chart.

It hit #1 on the UK Singles Chart for one week, becoming Elvis's 14th chart-topper in the country. Interestingly, not everyone was a fan at the time

Recorded at in Nashville on May 26, 1963, the song was a massive commercial success:

When we think of in the early 1960s, we often picture the Hollywood era—sun-drenched soundtracks and catchy, lighthearted pop. But nestled in the middle of 1963 was a track that managed to capture both his maturing vocal power and a playful, rhythmic edge: "(You’re The) Devil in Disguise." Pop Culture Legacy It peaked at #3 on

It also topped the Utamatic record chart in the fall of 1963.

The King’s Deceptive Classic: A Deep Dive into "(You’re The) Devil in Disguise" But nestled in the middle of 1963 was

Then, the "disguise" is stripped away. The tempo shifts into a driving , the drums kick in, and the backing vocals of The Jordanaires —specifically the deep, booming bass of Ray Walker —answer Elvis with a persistent "Oh, yes you are!" to represent the "devil". This "fast-and-slow" effect keeps the listener on their toes, much like the deceptive subject of the song itself. A Global Smash (With a Famous Critic)

Who we are

Heyo! We're Addy & Hassan — Engineers & Educators.

Profile picture of Addy Osmani

AddyOsmani

I'm an engineering leader working on Google Chrome and I lead up Chrome's Developer Experience organization, helping reduce the friction for developers to build great user experiences.

HassanDjirdeh

I'm a senior software engineer and have built large production web applications at organizations like Doordash, Instacart, and Shopify.

Profile picture of Addy Osmani

Pick your package

“Building Large Scale Web Apps” is available in either an e-book or as a physical copy.

E-book

Great for digital learners.

$24.99USD

  • 300+ pages
  • PDF or EPub (or both)
  • All future updates
Buy with Leanpub Or buy with Apple Books or Google Play

Physical copy (softcover)

Perfect for hands-on referencers.

$49.99USD

  • 300+ pages
  • Softcover
  • Something to put on your bookshelf
  • Interested in both the e-book and physical copy? Purchase both separately!
Buy Physical Copy

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