ToSMaster

This script looks good, but actualy you don't need to create a totaly new script (since the script list is getting longer and longer, and that might get annoying). So Bethesda was kind enough to add "default" scripts. Use the search field in the scripts and look for "defaultsetstage" - You can see a list of scripts that result in a stage to be set. After the "defaultsetstage" the event is named. Since you wanted to set the stage when the player reads a book, look for the "defaultsetstageonread" script! And voilà - there is your script. But don't forget to set the propertys ;) Final tip: I can always recoment the default scripts. They work great for their (mostly basic) purpose and you don't need to create custom ones.