A sham, and certainly to be avoided.
The possible buyer should think twice, then no bother. This is an appalling book, full of errors (factual, grammatical and spelling), childishly written, and highly derivative. In fact it may well be the worst book on the subject ever published on a national scale. Among the legion of errors: names of characters misspelt, musical and theatrical terms misused, even quite recent events relating to the topic misunderstood. The "authors" have written about farming, war, cooking, politics, tourism, Malta, fishing, Zulus, witches and crime--all in the last 3 or 4 years. As with most of those other subjects, their knowledge base is almost negligible and their research lamentable. "Scissors and paste", and "never mean the quality feel the width" hardly come into it!