draft version of the ms 1 It is not allowed to let the accepted version of this ms to be available for download. For this reason you downloaded a draft version that does not contain all graphs. The final version will be published in PERCEPTION. T. Lachmann Mental Rotation of Letters and Shapes in Developmental Dyslexia Patrycja Rusiak Kazimierz Wielki University, Bydgoszcz, Poland and University of Leipzig, Germany Thomas Lachmann* University of Bamberg, Germany and Brain Science Institute, RIKEN, Wako-shi, Japan Piotr Jaskowski University of Lübeck, Germany and University of Finance and Management, Warszawa, Poland Cees van Leeuwen Brain Science Institute, RIKEN, Wako-shi, Japan and University of Sunderland, UK * Correspondence concerning this article should be addressed to Prof. Thomas Lachmann University of Bamberg Department of Psychology Markusplatz 3 D-96045 Bamberg Germany phone: +49(0)341-9735943 E-mail: lachmann@uni-leipzig.de