DEPARTMENTS Up Front ..................................................................................................................... 1 by Michael Swaine If you’re the kind of person who think refactoring code to make it conceptually cleaner is exciting, then consider this issue your guidebook to adventure. Choice Bits ................................................................................................................ 2 We follow Twitter so you don’t have to. The Quiz ................................................................................................................... 33 by Michael Swaine A monthly diversion at least peripherally related to programming. Calendar ..................................................................................................................... 35 Want to meet one of our authors face-to-face? Here’s where they’ll be in the coming months. Shady Illuminations .............................................................................................. 38 by John Shade By reading this column you agree to abide by incomprehensible terms of use that John reserves the right to change at any time. But Wait, There’s More... ................................................................................... 40 Coming attractions and where to go from here. Except where otherwise indicated, entire contents copyright © 2013 The Pragmatic Programmers. Feel free to distribute this magazine (in whole, and for free) to anyone you want. However, you may not sell this magazine or its content, nor extract and use more than a paragraph of content in some other publication without our permission. Published monthly in PDF, mobi, and epub formats by The Pragmatic Programmers, LLC, Dallas, TX, and Raleigh, NC. E-Mail support@pragprog.com, phone +1-800-699-7764. The editor is Michael Swaine (michael@pragprog.com). Visit us at http://pragprog.com for the lowdown on our books, screencasts, training, forums, and more. ISSN: 1948-3562 — ii —