Related to: 'Creative Projects with Raspberry Pi'

Darina Allen

Darina Allen is Ireland's best-known food ambassador and the bestselling author of Ballymaloe Cookery Course and Forgotten Skills of Cooking, which won the prestigious André Simon award in 2009. She campaigns for local produce, is a member of Slow Food Ireland and set up Ireland's first farmers' market. She has won many awards including the Guild of Food Writers' Lifetime Achievement award in 2013. www.cookingisfun.ie

Guy Barter

Guy Barter is Chief Horticulturist of the Royal Horticultural Society, having joined the organization as superintendent of trials at RHS Garden Wisley in 1990. Prior to that, he gained experience in the commercial horticultural world after graduating with a degree in horticulture. Guy now runs the RHS Members' Advisory Service, which provides answers to an enormous range of questions and supplies evidence-based advice for thousands of gardeners and is author of RHS How Do Worms Work and RHS Can Anything Stop Slugs.

Imogen Dyer

Imogen Dyer is the unstoppable on-screen talent behind Weekly Imogen, the phenomenally successfully photography tips & tutorials YouTube channel which averages 50,000 views a day. Imogen and Mark began their photographic partnership in 2009 after a chance meeting at a village fete. Mark posted the images they shot together online and such was their success that they launched a YouTube channel to share their tips and techniques with Imogen presenting. Thus WeeklyImogen was born. In just four years it has become one of the biggest channels on YouTube, with over 150,000 subscribers and well over a million views a month with no sign of the growth slowing down.

Jake Spicer

Jake Spicer is an artist and drawing tutor based in Brighton, England. He is head tutor at the independent drawing school Draw, a co-director of the Drawing Circus and regularly runs portrait and figure drawing courses for the Camden Arts Centre and National Portrait Gallery.www.jakespicerart.co.uk@BrightonDrawing

Jamie Purviance

New York Times bestselling author Jamie Purviance is one of America's top grilling experts and Weber's master griller.Jamie is a graduate of Stanford University and the Culinary Institute of America. He is an accomplished chef and teacher who has helped millions of people to grill like professionals. He is a regular contributor to national newspapers and magazines, and is the author of many bestselling Weber cookbooks.

Jenny Dean

Jenny Dean has been working with natural dyes for four decades. She lectures on natural dyeing and has written widely on the subject. Her books include Colours from Nature and A Heritage of Colour.

Jenny Strebe

Arizona-based Jenny Strebe is author of the blog Confessions of Hairstylist and has been working with hair for over 14 years, including a 6-year stint with Tony & Guy. Her work has been featured in 944, Dwell, Lifestyles as well as on the TV on NBC and TLC and several other national media outlets. Jenny currently contributes to a number of blogs and Confessions of a Hairstylist was named one of the top hair blogs by Latest Hairstyles and Indiechick.

Jonathan Tustain

Jonathan Tustain has been fascinated with virtual reality all his life and has worked in the industry since 2012. Founding Europe's largest VR developer, Meetup, he is well known in VR circles, writing for roadtovr.com, founding mobile VR company Proteus (Freefly VR), acts as a consultant for companies wishing to enter the VR space and speaks at VR events.He has written features and stories for Shots.net, How it Works magazine and Yahoo. He also shoots video reports from VR events such as VRLO.

Julian Metcalfe

Julian Metcalfe, co-founder of global success Pret A Manger, is dedicated to his next crusade, itsu... a revolutionary and refreshing take on affordable, healthy food. itsu's delicious but light menu and confident flavours are attracting millions of loyal fans. Years spent listening to the ideas and demands of Pret customers encouraged Metcalfe and his team to build a new type of food place altogether... They call it 'eat beautiful'. High-protein, low carb salads, brown rice dishes, freshly made sushi, soups and noodles - fresh food that tastes as good as it looks. There are now around 75 itsu shops in the UK. itsu has also developed a growing range of Asian-inspired healthy food products and is distributing them through supermarkets.

Kara Rosen

PLENISH founder Kara Rosen spent a decade flying between New York and LA - jetlagged, overindulged and exhausted from a hectic travel and event schedule, whilst working for Condé Nast in New York on magazines such as Condé Nast Traveler and Men's VOGUE. After battling a recurring throat infection with antibiotics for two years, she turned to a holistic nutritionist who suggested a five-day juice cleanse. That cleanse, which began as a temporary solution for an exhausted body, finally helped her win the battle and developed into a love for a new lifestyle. Inspired by the power that intelligent nutrition (mostly plants) had on regaining her health, Kara became inspired by the power of the right foods to not only heal a damaged body, but her own power to proactively fill up on the good stuff to have the health, energy and drive to live a full and active life. Ultimately this lead her to create a portfolio of Plenish products that act as health-hacks for the way we live. She's a champion of proactive health that easily integrates into life and tastes delicious, keeping people running on plenty, never empty. Her books are your tool guide to live a Plenished life.Plenish was orignally published in 2015 and Kara's second book, Plenish: Fuel Your Ambition, published in 2016.Find out more about Plenish at instagram.com/plenishcleanse, on Twitter at @PlenishCleanse and at www.plenishcleanse.com.

Lia Leendertz

Lia Leendertz is an award-winning garden and food writer. She writes a monthly almanac column for the Telegraph, a monthly column for The Garden magazine and a long-running series on growing and eating seasonally for Simple Things magazine. She also contributes frequently to the Guardian and Gardens Illustrated. She is the author of several gardening books and the cookbook Petal, Leaf, Seed: Cooking with the garden's treasures. Lia appears monthly on BB6 Music with Cerys Matthews.Find out more about Lia at www.lialeendertz.com, on Twitter @lialeendertz and on Instagram @lia_leendertz.

Luciana Bianchi

Luciana Bianchi is a food writer and trained chef with a background in molecular science. She has worked in Michelin-starred restaurants, cooked for celebrities, interviewed most of the top international chefs, and has published work in 14 countries. Luciana is a member of the Guild of Food Writers UK, a contributor to the website of The World's 50 Best Restaurants, and a writer for the Italian International Food Guide, Identità Golose. A frequent traveller and food researcher based in the UK, she divides her time between Latin America and Europe. With more than 20 years experience in the field, she is a gastronomy consultant for M&C Saatchi, and an Associate Lecturer at the Basque Culinary Centre. Her articles and micro-blogging have thousands of followers in social networks.

Mark Wilkinson

Mark is an exceptionally talented self-taught photographer who delights in taking portraits in simple settings and extracting every last ounce of colour, texture and, crucially, natural light. Mark prides himself on working with an entry level Canon SLR, and a variety of lenses, though mainly a standard 50mm f1.8 lens. His personal photographic journey started when he was bought the wonderful Olympus Trip for his 12th birthday.www.weeklyimogen.com

Matt James

Matt James is a garden designer, broadcaster and senior lecturer teaching on horticulture degree programmes at the Eden Project, Cornwall, where he also manages a respected HND in Garden & Landscape Design. Channel 4's The City Gardener introduced Matt to the gardening public; the series was later broadcast around the globe. Two series about urban garden design in the US soon followed. Matt continues to make regular appearances on television and radio, including BBC Radio 4's Gardeners' Question Time. Matt's previous four books include RHS The Urban Gardener (Mitchell Beazley), and he has also written widely for many publications in garden design and gardening. Matt has won awards for his design work and continues to run a design practice based in Cornwall, working in the UK and abroad.

Matthew Biggs

Matthew Biggs trained at The Royal Botanic Gardens, Kew, has presented numerous television programmes, notably Channel 4's Garden Club, and is a regular panellist on BBC Radio 4's Gardeners' Question Time. He has written several books, including RHS Lessons From Great Gardeners (also Mitchell Beazley). Matthew contributes to several magazines, including the RHS's The Garden, BBC Gardeners' World and Gardens Illustrated. He lectures at the Royal Botanic Gardens, Kew, Oxford University Botanic Gardens and the Cookery School of Michelin-starred chief Jean-Christophe Novelli, and is Course Director of the Plants and Plantsmanship course at the English Gardening School.

Matthew Brehm

Matthew Brehm is an Associate Professor of Architecture at the University of Idaho, where his teaching responsibilities include design studios, graphics courses, and an annual study abroad program in Rome, Italy, that he initiated in 2007. He is the author of Sketching on Location and Drawing Perspective. In 2010, Matthew received the university's Hoffman Award for Excellence in Teaching, and his drawings have been recognized with awards by the Design Communication Association and the American Society of Architectural Illustrators.

Michael Freeman

Michael Freeman, professional photographer and best-selling author, was born in England in 1945, took a Masters in Geography at Brasenose College, Oxford University, and then worked in advertising in London for six years. In 1971 he made the life-changing decision to travel up the Amazon with two secondhand cameras, and when Time-Life used many of the pictures he came back with, he embarked on a full-time photographic career.Since then, working for clients that include all the world's major magazines, most notably the Smithsonian Magazine (for which he has shot more than 40 stories over 30 years), Freeman's reputation as one of the world's leading reportage photographers has been consolidated. Of his many books, which have sold over 4 million copies worldwide, more than 60 titles are on the practice of photography. For this photographic educational work he was awarded the Prix Louis Philippe Clerc by the French Ministry of Culture.Freeman's books on photography have been translated into 27 languages.

Midia Star

Midia Star is a journalist and freelance writer. She has studies and practised witchcraft, paganism and tarot since she was 12-years-old. Her philosophy is to live a magical life.

Mimi Spencer

Mimi Spencer is best known for co-authoring the best-selling The Fast Diet with Dr Michael Mosley, which introduced the concept of 5:2 intermittent fasting to the world. The Fast Diet has sold over a million copies worldwide, with translations into more than 30 languages. Mimi went on to write The Fast Diet Recipe Book and Fast Cook. Mimi's background is in lifestyle and style journalism, with an early career as a fashion writer for Vogue, the Evening Standard and then as editor of ES Magazine. She has been a columnist for You Magazine (Mail on Sunday), Observer Food Monthly and Waitrose Kitchen, while also writing lifestyle, fashion and food features for The Times and many national magazines.Mimi, 49, lives in Brighton with her husband and two teenage children.

Nathan Sawaya

Nathan Sawaya is the first contemporary artist to take LEGO into the art world. Painstakingly crafted, his work is both beautiful and playful, and elevates this ordinary toy to the status of fine art.His unique sculptures and renowned touring exhibition, The Art of the Brick, breaks attendance records globally. Nathan has received numerous awards recognizing his art and cultural achievements. In 2014, he founded The Art Revolution Foundation, for the purpose of making art a priority in our schools and homes. He has spoken at Google Zeitgeist, TEDx, Yahoo! and the Clinton Library.