Dinosaurs, Big Tech and Shapeshifters all embody the amazing range of the Borders Book Festival’s non-fiction offering. This week we introduce you to three writers who are all brilliant communicators, and all are unmissable.

As well as being a leading palaeontologist, Steve Brusatte also writes wonderfully well and has produced a fascinating account of The Rise and Fall of the Dinosaurs: The Untold Story of a Lost World. He describes brilliantly how these remarkable creatures created an empire which lasted 150 million years – even more fascinating than Jurassic Park.

How the internet is killing democracy (and how we can save it) is the uncompromising subtitle of Jamie Bartlett’s The People Vs Tech. It is a powerful and revealing polemic that produces some astonishing revelations about how our lives are increasingly controlled by the unseen forces of the internet.

Gavin Francis’ Shapeshifters shows that to be alive is to be in a state of perpetual change: growing, healing, learning and aging. This award-winning writer shows how some changes cannot be avoided – puberty, the menopause or grey hair. Others can be welcome, like pregnancy or a cure for illness and some can lead down dark paths to places like anorexia or dementia.

Steve Brusatte: The Rise and Fall of the Dinosaurs, McInroy & Wood Marquee, Sunday 17 June, 3.45pm, £13/11

Gavin Francis: Shapeshifters, Orchard Marquee, Sunday 17 June, 5.15pm, £11/9

Jamie Bartlett: The People Vs Tech, McInroy & Wood Marquee, Sunday 17 June, 8.15pm, £13/11