The image of the book cover is copyright (c) 2008 by Wiley-VCH, Certain images in the lectures are taken from Wikipedia (LEDs, Macintosh computer, Myoglobin, carbon nanotube, C60 molecule, graphene sheet, methane molecule, sp2 and sp3 orbitals). These images are either distributed under the GNU Free Documentation License, Version 1.2 or they are in the public domain.

The rest of the material is Copyright (c) 2008 - 2011 by Philip Hofmann. Permission is granted to copy, distribute and/or modify the material under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation. Details of the licence can be found here.