 Thank you. So I'm going to talk on react.js. We will cover some basic concepts of react.js how it should be used and we will be building a small application for understanding those concepts. So I'm Prathamesh. My Twitter handle is here so you can follow me. I work for Big Binary. We are a Ruby on Rails consulting shop based out of Miami. All of our team members work remotely. And after react.js was released, we got interested into it and started using it. And that's why I'm giving talk on react today. So today's agenda is we will be discussing some of the concepts of react, some of the features that go against the traditional way of web development. And we will be building a small app based on Open Library API for understanding those concepts. So you can check this link, Bitly's sip of react.js. Here I have mentioned some resources for getting started with react. I have also added a link for a video series that we have prepared for getting started with react. You can check out this video link. And then you can find code examples from my talk and link to the presentation. So let's start. We will be using Open Library API. So Open Library is an attempt to create a page for every book that has ever been published. So it is an open catalog of all the books that are ever being published. And it has some APIs. Like I will be using this search API from them. So they allow us to search books based on some query. And we will be using a similar kind of, we will be building a similar kind of app where user will be able to enter the query. And then we will show whatever books which match that query. So we will start from batch. And in the end of the session we will have a simple minimal app where user can enter the query and they will get the results. So Wi-Fi is slow so this page is not yet loading. Let's see. Yeah. This one. Just go to Bitly slash sip dash of sip of react.js. Okay. You can go to this link. Bitly slash sip of react.js. Thanks. Okay. So let's start with react. First we will discuss what react is. React is a simple JavaScript library for building user interfaces. It was developed at Facebook and Instagram and now it is open source for everyone to use. Its job is very simple. Just building the UI. So it doesn't care about what rest of the technology that you are already using. It also doesn't...