About the Reviewers

John Boere is an engineer with 22 years of experience in geospatial database design and development and 13 years of web development experience. He is the founder of two successful startups and has consulted at many others. He is the founder and CEO of Cliffhanger Solutions Inc., a company that offers a geospatial search engine for the companies that need mapping solutions.

John lives in Arizona with his family and enjoys the outdoors—hiking and biking. He can also solve a Rubik's cube.

Jettro Coenradie likes to try out new stuff. That is why he got his motorcycle driver's license recently. On a motorbike, you tend to explore different routes to get the best experience out of your bike and have fun while doing the things you need to do, such as going from A to B. In the past 15 years, while exploring new technologies, he has tried out new routes to find better and more interesting ways to accomplish his goal. Jettro rides an all-terrain bike; he does not like riding on the same ground over and over again. The same is true for his technical interests; he knows about backend (Elasticsearch, MongoDB, Axon Framework, Spring Data, and Spring Integration), as well as frontend (AngularJS, Sass, and Less), and mobile development (iOS and Sencha Touch).

Clive Holloway is a web application developer based in New York City. Over the past 18 years, he has worked on a variety of backend and frontend projects, focusing mainly on Perl and JavaScript.

He lives with his partner, Christine, and his cat, Blueberry (who would have been called Blackberry except for the intervention of his daughter, Abbey, after she pointed out that they could not name a cat after a phone).

In his spare time, he is involved as a part of Thisoneisonus, an international collective of music fans who work together to produce fan-created live show recordings. You can learn more about him at http://toiou.org.

Surendra Mohan, who has served a few top-notch software organizations invaried roles, is currently a freelance software consultant. He has been working on various cutting-edge technologies such as Drupal, Moodle, Apache Solr, and Elasticsearch for more than 9 years. He also delivers technical talks at various community events such as Drupal Meetups and Drupal Camps. To know more about him, his write-ups, technical blogs, and many more, log on to http://www.surendramohan.info/.

He has also authored the titles, Administrating Solr and Apache Solr High Performance, published by Packt Publishing, and there are many more in the pipeline to be published soon. He also contributes technical articles to a number of portals, for instance, sitepoint.com.

Additionally, he has reviewed other technical books, such as Drupal 7 Multi Sites Configuration and Drupal Search Engine Optimization, both by Packt Publishing. He has also reviewed titles on Drupal commerce, Elasticsearch, Drupal-related video tutorials, a title on OpsView, and many more.

Alberto Paro is an engineer, project manager, and software developer. He currently works as a chief technology officer at The Net Planet Europe and as a freelance consultant on software engineering on Big Data and NoSQL Solutions. He loves studying the emerging solutions and applications mainly related to Big Data processing, NoSQL, natural language processing, and neural networks. He started programming in BASIC on a Sinclair Spectrum when he was 8 years old, and in his life, he has gained a lot of experience by using different operative systems, applications, and by doing programming.

In 2000, he graduated from a degree in Computer Science Engineering from Politecnico di Milano with a thesis on designing multiuser and multidevice web applications. He worked as a professor's helper at the university for about one year. Then, having come in contact with The Net Planet company and loving their innovative ideas, he started working on knowledge management solutions and advanced data-mining products.

In his spare time, when he is not playing with his children, he likes working on open source projects. When he was in high school, he started contributing to projects related to the Gnome environment (gtkmm). One of his preferred programming languages was Python, and he wrote one of the first NoSQL backend for Django MongoDB (django-mongodb-engine). In 2010, he started using Elasticsearch to provide search capabilities for some Django e-commerce sites and developed PyES (a pythonic client for Elasticsearch) and the initial part of Elasticsearch MongoDB River. Now, he mainly works on Scala, using the Typesafe Stack and Apache Spark project.

He is the author of ElasticSearch Cookbook, Packt Publishing, published in December 2013.

Lukáš Vlček is a professional open source fan. He has been working with Elasticsearch nearly from the day it was released and enjoys it till today. Currently, Lukáš works for Red Hat, where he uses Elasticsearch hand-in-hand with various JBoss Java technologies on a daily basis. He has been speaking on Elasticsearch and his work at several conferences around Europe. He is also heavy on client-side JavaScript and building frontends for full-text search services.