7+ and 11+ exam preps for Alleyn's + Dulwich College

[MAK]

Hi

Could any parents give any advice on how to prepare kids for the 7+ and 11+ exams at Dulwich College and Alleyn's, please?

There is a huge range of books selling at WHSmiths with different exam formats and I'm not sure which ones to buy. Could anyone kindly advise me what exam preparation books to focus on please e.g. GL Assessment, Schofield, Sims Book, Bond Books, CPG, Letts etc?

Any help would be highly appreciated.

Thank you. :)