From publisher blurb:
Castle Builder Volume 1: Strongholds is the first installment in a 10-part series designed to help Game Masters and players plan their ideal fortifications in a step-by-step format from the ground up. Although the book has no specific setting, it is designed to accomodate any technological era that one is likely to encounter in a fantasy campaign setting, from the Stone Age to the Renaissance.
This volume's contents include:
Introduction to the nature of strongholds, why they are built, and how they are perceived;
Various material types ranging from the historic to the fantastic;
How to consider the most logical layout for your needs and the story potential this holds;
Ways to integrate a stronghold's existence with a local community; and,
Everything you need to quickly lay out your stronghold with standardized rooms, as well as free-form guidelines to make anything uniquely suited to personalizing your designs!