Mario Agüero is a Software Engineer from Costa Rica with a long experience in both software development and academics.
He has developed several backend engines for clients and directed the adoption of best practices for growing business. From the last couple of years, he has also been working in frontend development, developing great interfaces and components for his clients' websites.
He has the advantage of being strongly agnostic about platforms, making him one of the few persons recognized as an excellent instructor and architect in both .NET and Java.
On the academic side, he has always been ahead in actively promoting technologies such as XML, JavaScript, and JSON before they became mainstream. He has helped with and developed several training programs for professional updates and career changes.
He has also reviewed the Spanish editions of several books, such as PHP for Dummies.
Kaiser Ahmed is a professional web developer. He has acquired his Bachelor of Science degree from Khulna University of Engineering and Technology (KUET) and his Master of Science degree in Computer Science Engineering from United International University, Dhaka. He is a cofounder of CyberXpress.Net, Inc. (www.cyberxpress.net), which is based in Bangladesh.
He has been working as Senior Software Developer at Krembo Interactive and D1SH.COM CORP., Canada, for 2 years.
He has a wide array of technical skills, knowledge of the Web, and experience across a spectrum of online-development activities in building and improving online properties, which he has done for multiple clients. He enjoys creating site architecture and infrastructure; backend development using open source technologies such as PHP, MySQL, Apache, Linux, and others (for example, LAMP); and frontend development using CSS and HTML/XHTML.
Andy Matthews has been working as a web and application developer for over 16 years, with experience in a wide range of industries and a skillset which includes UI/UX, graphic design, and programming. He has co-authored the book jQuery Mobile Web Development Essentials, and writes for online publications such as NetTuts and .NET Magazine. He is a frequent speaker at conferences around the USA, and he has developed software for the open source community including several of the most popular jQuery Mobile projects on the web. He blogs at andyMatthews.net, he tweets at @commadelimited. He lives in Nashville, Tennessee with his wife and four children.
Tony Pye has over 10 years of experience in producing web-based solutions, and strives to stay ahead when it comes to rapidly-evolving web technologies in order to be able to offer innovative solutions.
He is passionate about matching business goals with innovative use of technology. As the head of Digital Production at INK Digital Agency, he has been guiding clients through the complex digital world; integrating digital marketing with internal business systems is his specialty.
Liaising with members from the creative and user-experience teams, meeting clients, presenting ideas, and helping define goals are just a part of Tony's normal day at INK.
Some of the solutions he has helped produce have delivered exciting results for companies including Ballymore, Morrisons, Renault, Tarmac, Aviva, LA fitness, and the University of Leeds.
Tony has also worked on a number of other books as the technical reviewer, which include Pro HTML5 Programming and The Definitive Guide to HTML5 WebSocket (not yet published).