The Web Performance Collection

Description
Performance simply matters. Technology may allow us to “go bigger”, but maybe not necessarily be better when it comes to performance. Now is the time to utilize the amazing tools that are available to us for making websites and applications faster, and to learn how to improve user experience and satisfaction.
This collection contains four books:

Front-end Performance is a collection of practical articles on front-end website performance for front-end developers. It’s packed with useful, real world hints and tips that you can use on your sites today.
Back-end Performance is a collection of articles on back-end website performance for web developers. It outlines useful strategies and practical advice.
Performance Tools contains tutorials on some of the most popular and powerful website performance tools available.
Performance Project contains a series of practical, real-world tutorials, all based around a single project: a simple image gallery blog. We’ll build the project, and then run through a series of performance optimization processes; by the time we’re done, we’ll have achieved very significant performance improvements.

This collection is for developers who wish to build sites and apps that run faster. You’ll need to be familiar with HTML and CSS and have a reasonable level of understanding of JavaScript in order to follow the discussion, and for book 2, Back-end Performance, you’ll need some understanding of server-side development.