I have to give this Book a massive
Myself and many others that I know have used this book and have been succesful at Technical Interviews. It came recommended.
For those who have never seen the book it is written as a refresher highlighting the key points to many questions and subjects that may be discussed at interview. It does not give full explanations from beginning to end and full back ground infromation as your already supposed to have covered that during your ATPL theory course. It can be described as more of a recurrency aid.
This book along with the cathay publication is essential in my opineon for anyone preparing for interview. You wont go far wrong. Gets my vote