Writer Amy Stewart explores the weird and wonderful world of passionate tree collecting in her new book, aptly called The Tree Collectors.

Colin Bisset turns his attention to that most versatile piece of cutlery- the spork.

Paulette Whitney runs a market garden called Provenance Growers in Lutruwita/Tasmania. She has explored her love of edible plants, including more unusual or hard to get varieties, in her new book Broccoli and other Love Stories.

Daniella Guevara Muñoz, the owner of Adelaide's La Popular Taqueria, is on a mission to educate others about the food of her homeland. Her quest is to have us rethink our assumptions about Mexican  food.

The dome of St Peter's Basilica in Rome is not only an architectural marvel but also represents the birth of modern engineering practices. The dome may not have survived if it wasn't for the intervention of a tenacious pope and three mathematicians. It is a story recounted in a new book Saving Michelangelo's Dome by University of California academic and engineer Wayne Kalayjian.

Colin Bisset explores the gossip worthy life of Isaac Merritt Singer, the man who invented the modern sewing machine, the Singer.

Andrew McConnell is a chef and the owner of a plethora of Melbourne restaurants, wines and food providores. He shares his deep love of cooking with a dish he would choose for his last meal, spaghetti vongole.

Patrick Grant is the co-owner of Savile Row tailors Norton and Sons and the author of The Savile Row Suit- the art of bespoke tailoring. He shares his insights into the joy of a well cut suit, albeit at an eye-watering price.

A staggering 62 per cent of the clothes we buy in Australia have some form of synthetics in them. With the rise of fast fashion the ubiquity of plastics will only worsen over time. Dr Tamzin Rollason is a lecturer at RMIT's School of Fashion and Textiles who argues we need to rethink not just consumer behaviour but the life cycle of clothes from start to finish.

Annie Smithers explores the next chapter in Elizabeth David's seminal work French Provincial Cooking. This time it is the turn of vegetables to come under Elizabeth's exacting eye.

The benefits of 15 minute cities, where amenities are within easy reach for urban life, are gaining traction around the world. Stephanie Bertolo, Associate at Springboard Policy, a public policy research and advisory firm in Canada, explores what this idea means for women in particular.

What inspires us to make and create? In this new series we visit craftspeople artisans, and makers in their studios to hear about their craft. First up is Nadine Keegan, glass artist.

Geoffrey Bawa is one of Sri Lanka's most renowned architects and now a new documentary is highlighting his extraordinary body of work. Afdhel Aziz is the director of The Genius of Place which is available to stream via the Shelter Architecture channel.

Is there a link between good design and democracy? Sophia Psarra is a professor of Architecture and Spatial Design at The Bartlett School of Architecture, University College London who has studied the way architecture subtly influences power structures in parliaments around the world.

Mary-Jane Walker is an evolutionary scientist and artist based in Geelong, Victoria. She is working in 'paper taxidermy' to create more than 80 birds which are under threat in her Now You See Us art project.

What we put in our tea and coffee has become a polarising subject in recent years, so why is it that milk has become such a hot topic? Matthew Evans is a chef, farmer and author. His new book is called Milk-the truth, the lies and the unbelievable story of the original superfood.

As higher density increases in our cities and we look for housing solutions, how can apartment design be improved? Dr Elizabeth Farrelly is the founder and CEO of the Better Cities Initiative, an organisation which is calling for better planning models to create more vibrant urban centres into the future.

What role can the humble duckweed play as humans embark on missions to the Moon and Mars? And what lessons can be learned about food security here on Earth? Professor Matthew Gilliham is the director Plants for Space, a consortium of academics who are turning their attention to this question of botanical survival.

Sam Cox is a landscape designer who learnt his craft from one of the leaders in naturalistic garden design, the late Gordon Ford. He takes us on a tour of his garden and reflects on how we can all learn from the natural contours of the landscape.

Grand tours for the aristocracy in centuries gone by were filled with art and architecture to fulfil the senses. But what would such a tour look like today if only places created in the 20th and 21st centuries  were on the itinerary? Richard Weller is a landscape architect who has pondered this question in his latest book, To the ends of the earth- a grand tour for the 21st Century. 

What role has the colour black played in mourning fashions since the time of Queen Victoria? Dr Lorinda Cramer is a fashion historian at Deakin University and co-curator of Back to Black, an exhibition at Old Government House, Parramatta. She charts the changing cultural meanings associated with this darkest of hues.

Can cemeteries be a boon for the living as well as a place for the dearly departed? Tania Davidge, Executive Director of Open House Melbourne, believes so. She argues that cemeteries can provide much needed open space in our crowded cities to be enjoyed across the generations.

Colin Bisset takes us on a tour of the some of the world's greatest commemorative monuments. From London's Albert Memorial to Berlin's November Revolution Monument, they speak of a desire to immortalise and elevate a particular viewpoint of history.

Chef Jamie Oliver selects the last meal he would have on this earth- his mum's roast dinner. Surrounded by friends and family, he believes a Sunday roast would be the best final meal, with all the trimmings.  

Australian restaurants and cafes are grappling with the impacts of the cost of living, COVID, immigration reform, and wages, jeopardising their survival.  Wes Lambert is the head of a new peak body, alongside Neil Perry and Chris Lucas, tackling these pressing challenges to sustain the $64 billion sector.