This boook has many things that most people will find interesting. They include: a fascinating account by the author on how he originally discovered the obscure text from which he derived the instructions to assemble the timepiece; Isaac Asimov's introduction comparing modern-day reliance on tecnology vs. a simplistic approach to approaching the complexities of timekeeping (comparison makes one wonder how far advanced the so-called ancients really were, and what was lost over time); rather complicated instructions on how to construct a working clock using several printed pages and the immense satisfaction derived from it.