It is not known who took photographs of the book, whose contents have ..(whose-which)

[abo.omar]

It is not known who took photographs of the book, whose contents have been kept a secret before the book is published at 12.01 am on Saturday.



Whose or which?

 

[5jj]

'Which' is incorrect.

Some people do not like the use of 'whose' for inanimate things, and would write 'the contents of which'.