This book is divided into the following parts. Although there is a lot of duplicate information in certain parts, it's the easiest way to read it.
Part One gives general information about this book (versions, where to get it, changelog, mailing lists, and how to get in touch with us). It also explains a few important aspects you really want and need to read before starting to build an LFS system.
Part Two guides through the installation of the LFS system which will be the foundation for the rest of the system. Whatever you choose to do with your brand new LFS system, it will be built on the foundation that's installed in this part.
Part Three contains various Appendices.