Jurriaan Plesman's book is freely available at Google Book Search at:

http://www.google.com.au/books?id=cIbpj59s-KAC&lpg=PR3&ots=raIs2LZ1Xy&dq=Getting%20off%20the%20Hook%20Foreword&pg=PR3#v=onepage&q=Getting%20off%20the%20Hook%20Foreword&f=false