Svelte is a relatively new JavaScript frontend framework for developing websites and web apps. The praise that Svelte has received over the last two years is testament to it not being "just another frontend framework". It won "breakthrough of the year" on the State of JS survey 2019, followed by topping the satisfaction rating in 2020. It was also voted the most loved web framework in the Stack Overflow 2021 survey. Svelte appeals to developers with its combination of a small bundle size, very good performance, and ease of use. At the same time, it comes packed with a lot of goodies. A simple state management solution to build upon is already provided, as well as ready-to-use transitions and animations. This book will start by shedding light on how Svelte achieves this, and then we'll look at how to implement applications with Svelte using the various possibilities Svelte provides.