There is a lot of information available on how to prepare or update a CV, but it can be a challenge for an undergraduate to select sources.  In addition to advice on writing a CV published on web pages, I am offering students a selection of videos that may be useful.

Anglia Ruskin University Employability and Careers Service http://www.anglia.ac.uk/ruskin/en/home/central/studentsupport/services/career...

Prospects graduate careers http://www.prospects.ac.uk/cvs.htm