Daniel Eden is a student, writer, designer, and developer from Manchester, UK, currently studying at Nottingham Trent University. In 2011, he created the CSS animation library, Animate.css, which has since been used by companies such as Hipstamatic, Foursquare, and EA Games.

Matt Mitchell is a graphic designer, who fell in love with designing for the web 10 years ago. With that came an unhealthy obsession with typography, grids, and harmony in design. He'll bore anyone who will listen about the power of musicality and proportion, never quite getting over the failure of his many musical projects. Currently head of web design at www.bet365.com, he has to fight the strong urge to be a designer by day and by night.

See what Matt's up to at mattmitchell.co.uk or on Twitter @_m_d_m.

Matt Wilcox is lead developer at View Creative Agency; a team of twenty-something designers, illustrators, typographers, artists, and web-developers working hard to raise the reputation of North Wales' creative sector. His role encompasses the frontend skills he's honed since starting out in the industry nine years ago and includes continual learning, sharing of ideas, teaching, project management, and meeting the unique challenges of working with a mix of clients and co-workers from differing creative backgrounds. He's sure no other group could have come up with something like our local chippie's website (http://enochs.co.uk) while simultaneously delivering big-name projects for world-renowned companies in both electronic and print media.

Matt is also responsible for http://adaptive-images.com—an early attempt to deal with the problem of image file size in a newly responsive world. He's grateful to Ben for being invited to preview this fine book (and he hopes you enjoy it as much as he has!), and for the kind words about Adaptive Images in Ben's previous book.