The Improved ADOM Guidebook is an alternate version of the ADOM Guidebook maintained by Pavel Mencik, without the permission of Williams. Apart from the violation of copyright — the IGB still mainly consists of Williams' unaltered writing, and his requests that it be taken down have not been complied with — this version of the guidebook also contains a great deal of code-dived information, i.e. gleaned from scanning or analyzing the executable of the game, something which the creator, Thomas Biskup, has expressed his disapproval of. While the regular Guidebook does contain references to code-dived information, this information was obtained before the "ban" on publication of such was formed; Mencik continues to research and add information gained in this manner.