The Copyright Licensing Agency has guidelines on Copyright and to allow books to be made more accessible for people with Visual Impairment or those "who are otherwise physically unable to use published formats".

Provided that a person with a visual impairment owns a copy of it, then it is possible to transcribe the book into a more accessible format without seeking special permission.

This means that, provided a copy of the book is owned, it is possible for a school to produce an enlarged version, or to scan pictures and text into a computer to create a talking book for a pupil.

Further details are available from the Copyright Licensing Agency web site:

http://www.cla.co.uk/copyrightvillage/vpguidelines.pdf