Search of Ebay UK shows 2 hits. The 1st looks like a computer prog with the exam questions. The 2nd looks like the real book but at a steep price.
My recollection of the PPL Confuser and the IMC Confuser, both of which I had at the time, was that they were useful, especially the former. I have just done the JAA IR exams and did most of them purely using an online question bank and there is no doubt that that is a really effective way to pass the exams. The workload goes down by a factor of 10.
However this is good if you already know what you need to know. The exam material is mostly dross from the 1960s. But if you are new to flying, or (especially) new to instrument flight, then you need to find a systematic way to learn the real stuff. That won't come from exam study; you need to find a good ground instructor as well as a good flight instructor.