Alex Bachuk is a web developer with over 7 years of experience, specializing in custom JavaScript and WordPress web applications. Alex has been working with WordPress since version 2.5 and has worked on projects ranging from a single page website to interactive web applications and social platforms.

These days, Alex mostly works on single page web applications powered by Angular.js and full stack JavaScript applications using Meteor. His current projects include http://classmate.io—a web application for education and http://timebooklet.com/—a timesheet-focused reporting application.

Alex also organizes and talks at WordPress meetups throughout New England. He writes about technology on his blog, http://alexbachuk.com/.

Marthe Bijman is a writer, literary critic, and communications expert, specializing in mining engineering. She has worked extensively in the mining and information technology industries. She holds a number of post graduate degrees, including an MA in applied linguistics and literary sciences. She is the president of Red Pennant Communications Corp. (http://red-pennant-communications.com/) She has nurtured a lifelong interest in language and literary analysis and is an astute and prolific reader and literature reviewer. She publishes her reviews on her blog and website, http://sevencircumstances.com/. She has been a reviewer on Packt publications such as Prezi Hotshot by Hedwyg van Groenendaal, Prezi Cookbook by Charlotte Olsson and Christina Hoyer, Prezi Essentials by Domi Sinclair, and Mastering Prezi For Business (2nd ed.) by Russell Anderson-William and JJ. Sylvia IV. South African-born, she now lives and works in Vancouver, Canada.

Cyril Pierron is a tech-savvy web addict and life-curious engineer. He started programming at the age of eight . He has been working in the field of telecommunications for 12 years and as a solution architect in the e-commerce sector since 2011. He is married and the father of a lovely girl.

Cyril has worked as a technical reviewer on Wordpress 4.x Complete by Karol Król as well as jQuery 1.4 Animation Technique by Dan Wellman.

About his experience in SEO, he says, "As a solution architect working in the e-commerce space, I regularly face customers and web agencies' SEO requirements. SEO is a concern for all players, whatever their size, and a subject that inevitably draws a lot of questions. A good understanding of SEO's impact is definitely knowledge that can help anyone involved in website development to improve in their practice and support their customers better. I really hope this book will help them on their path to mastering SEO."

Ardian Yuli Setyanto, has played with programming since high school. He joined the national selection for Tim Olimpiade Komputer Indonesia (TOKI, Indonesian Computer Olympiad Team) twice, in 2002 and 2003, which persuaded him to study computer science at Gadjah Mada University (UGM), and he graduated in 2009—the first among his friends—with a score of 3.5/4. He also used WordPress as his essay for his bachelor's degree. Adrian developed his own plugin and combined it with a GSM phone to read and send SMS (text messages) instead of the usual e-mail to manage WordPress comments in his essay.

After graduating from university, he started working as a freelancer using WordPress and Prestashop. Now, he is working as a backend developer using PHP (Symfony2) and Ruby (Rails and Sinatra) at sTRADEtegy (stradetegy.com). Previously, he created a file-sharing website at www.kajian.info using Symfony2.

You can read his blog at http://www.ardianys.com/, which discusses programming and his beloved family, Niela, Dzulqarnain, Nusaibah, and Mazaya. If you have any technical questions about this book, you can contact him via Twitter at his handle, @ardianys.