'So who will buy this book? Well, our PhD students for a start. I've told them all to buy their own copy; at less than £40 for more than 700 pages it's an absolute snip. Also, in the three weeks I've had my free copy I've consulted it four times, all to fruitful effect, in discussions with colleagues, so I'd suggest they get their own as well. As a reference text for course writers it could be invaluable, and device researchers writing papers, theses, proposals or reports may well wear it out completely.' C. C. Phillips, Contemporary Physics