In twenty years behind the till in The Bookshop, Wigtown, Shaun Bythell has met pretty much every kind of customer there is - from the charming, erudite and deep-pocketed to the eccentric, flatulent and possibly larcenous.

In Seven Kinds of People You Find in Bookshops he distils the essence of his experience into a warm, witty and quirky taxonomy of the book-loving public.

So, step inside to meet the crafty Antiquarian, the shy and retiring Erotica Browser and gormless yet strangely likeable shop assistant Student Hugo - along with much loved bookseller favourites like the passionate Sci-Fi Fan, the voracious Railway Collector and the ever-elusive Perfect Customer.