Effective Scala – Best Practices from Twitter by Bienvenido David III.
From the post:
Twitter has open sourced its Effective Scala guide. The document is on GitHub, with the Git repository URL https://github.com/twitter/effectivescala.git. The document is licensed under CC-BY 3.0.
Scala is one of the primary programming languages used at Twitter, and most of the Twitter infrastructure is written in Scala. The Effective Scala guide is a series of short essays, a set of “best practices” learned from using Scala inside Twitter. Twitter’s use of Scala is mainly for creating high volume, distributed systems, though most of the guide should be applicable to other domains.
Sounds like a book to read if you are either looking for work at Twitter or just want to get better at Scala. Both are worthwhile goals.