A finished help book is a folder (directory) on the drive with files and folder inside. As a rule, the folder is named 'help' and resides just in the directory where the application has been installed.
The contents of the help book folder is as follows:
help/ chapter1/ ; chapter 1 in the subfolder of its own index.html ; start page fo the chapter 1 ... ; topic pages of the chapter 1 yhgfx/ ; auxiliary folder with graphi book.png ... cont.css ; style sheet for the right frame help.html ; frameset definition help.js ; master scripts idx_A.html ; file of indexed phrases started with letter A ... idx_Z.html ; file of indexed phrases started with letter Z index.html ; content at a first glance (list of chapters) navi.css ; style sheet for the left frame popupref.js ; sñripts for the topics that invoke pop-up notes popup.js ; scripts for pop-up notes themselves toc.html ; table of contents yhusing.html ; file of the topic on using the help book ... ; files of top-level topics