2026 Reading Challenge

Join the Goodreads Author Program

Are you D.F. Renn, author of the books below?
Caerphilly Castle by D.F. Renn Old Sarum by D.F. Renn Norman Castles in Britain by D.F. Renn Medieval castles in Hertfordshire, by D.F. Renn Kenilworth Castle by D.F. Renn Three shell keeps, by D.F. Renn Clifford's Tower and the castles of York, by D.F. Renn Pevensey Castle, Sussex, by D.F. Renn Three Shell Keeps by D.F. Renn Clifford's Tower and the Castles of York by D.F. Renn


To join the author program as D.F. Renn, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


About the Author Program
Authors on Goodreads
Author Guidelines
Author Program How-To
Author & Advertisers Blog
Ask the Author: Featured Authors
About Goodreads