Steven Pinker, an experimental cognitive scientist and professor of psychology at Harvard. He has been named by Time Magazine as one of the 100 most influential people in the world today. 

He joins Krishnan to discuss his new book, ‘Rationality: What It Is, Why It Seems scarce, Why It Matters’ which is billed as a user's guide to rationality during an epidemic of unreason.

Producer: Nina Hodgson

Yuval Noah Harari is one of the world's most famous public intellectuals, historians and writers. He is probably most famous for his book 'Sapiens: A Brief History of Humankind'.

His most recent book, 'Sapiens: A Graphic History, Volume 2: The Pillars of Civilization' has just been published and offers a different way of telling the story of humankind for a younger audience.

Yuval talks to Krishnan about where racism comes from, what the recipe for a dictatorship is and why we should be very careful about how we used artificial intelligence. 

Producer: Rachel Evans

Shon Faye is a writer, comedian and podcaster who had an instant Sunday Times Bestseller with her debut book The Transgender Issue - An Argument for Justice, making her the first trans person to be a bestseller since 1974. Shon’s new book is a detailed overview of the systemic violence and discrimination trans people face in Britain today. From access to healthcare, to poverty and homelessness, Shon outlines what it will take for trans people to achieve true liberation. She talks to Krishnan about how the liberation of Trans people would benefit everyone in society, the problems with the ‘debate’ about Trans people in the media and how transitioning saved her life.

Indra Nooyi is the former chairman and CEO of PepsiCo. She was perhaps the first of the Indian Americans to start taking over the big American giants. 

Her new book, My Life in Full: Work, Family and Our Future explores her journey to becoming one of the world's most powerful women.

She talks to Krishnan about how working from home has revolutionised the relationship between women and work and the importance of business in politics.

Producer: Rachel Evans

Jay Rayner is a journalist, food critic and author, best known for his entertaining food and drink criticism and gastronomic publications.

His latest book, Chewing the Fat, is a collection of some of his columns, digging deep into the world of food.

In this Ways to Change the World he talks to Krishnan about how politics and culture reflect and influence our eating habits - and reveals his lesser-known love and talent for jazz music.

KAMILLE is an award-winning songwriter who has written hits for artists including Little Mix, Stormzy and The Saturdays. 

She has now become an artist in her own right, with her single Sad Party, and is one of the stars of Channel 4's new docu-series, Highlife. 

KAMILLE speaks to Krishnan about leaving her finance career to write top 20s for some of the world's most famous artists and the reality of being a Black woman in the music industry today. 

Producers: Rachel Evans and Faye White

Carl Cox is one of the original superstar DJs of the 80s and 90s. He helped bring acid house from the warehouses of Chicago to British raves, the unregulated party scene, then festivals and clubs. And he's still going.

His new book 'Oh Yes, oh yes!' chronicles his life from a scaffolder in the south London suburbs to one of the true pioneers of UK club culture.

He talks to Krishnan about how his craft has evolved of the decades, his concerns for the British entertainment industry and how he nearly gave up on his career after a terrifying experience.

Producer: Rachel Evans

KSI, otherwise known as 'JJ', became famous on YouTube nearly a decade ago with millions now subscribing to his channel. Since then, he has become well-known as a signer, a rapper and even a boxer.

Krishnan speaks to him about his career as a musician, how boxing has helped him and how he deals with racism in the industry. 

Producer: Rachel Evans