In German spoken theatre, prompt books used to be written by multiple participants engaging in diverse manuscript practices which continually revise the unfixed literary text within its theatrical context. Based on examples of the vast Hamburg »Theatre-Library« from the 1770s to 1820s, this study proposes a transdisciplinary approach towards handwritten artefacts in modern European theatre. Martin Jörg Schäfer and Alexander Weinstock examine the many-handed creation, handwritten transformatio...