Alastair, cyclist, author and adventurer, will be at Crown Street Library on Thursday June 19 from 7pm.
He will be talking about the second volume of his book 'Thunder and Sunshine' - an account of his cycle trip around the world.
Copies of the book will be on sale on the night with all profits going to the Teenage Cancer Trust.
The talk is free but places are limited so booking is essential.
To book a place or for more information about the Festival of Cycling contact Greg McDougall on (01325) 388721, e-mail greg.mcdougall@darlington.gov.uk or click here.