The book sale for Q4 has started. You can order your books via https://tue.itdepartment.nl/en/. The collective order period (in which you receive an an additional discount) is until April 28. If you have any questions or encouter problems, please send a mail to study@vdwaals.nl.
D.J. Griffiths, Introduction to Electrodynamics has been added to the booklist of StudyStore, because that course is also taught in Q4 this year.