This collection of reports and articles is part of the Swedish National Road Administration's mobile telephone study from 2003. The texts are written in English with one exception, the last report. The following texts are included: "Mobile telephone simulator study" (Kirchner, A., Toernros, J., Vogel, K., Nilsson, L., Bolling, A., Patten, C., Malmstroem, T. and Ceci, R.); "Information technology in the car: Mobile phones and traffic safety - a review of contemporary research" (Svenson, O., and Patten, C.); "Using mobile telephones: Cognitive workload and attention resource allocation" (Patten, C., Kircher, A., Oestlund, J. and Nilsson, L.); "Combining mobile phone conversation and driving - studying a mundane activity in its naturalistic setting" (Esbjoernsson, M. and Juhlin, O.); "Mobile phone use while driving" (Thulin, H. and Gustafsson, S.); "Mobile phoning and driving: the professional driver's perspective" (Salo, I. and Svenson, O.); and "Kombinationen IT baserade stoedsystem i bil och nya unga foerare" (Gregersen, N-P).