There is an intellectual legacy in bibliographical studies. Amongst such traditional bibliographical pioneers as Pollard, McKerrow, Greg, Bowers, and Tanselle, Phillip Gaskell must surely be included in the list. His "New Introduction" is still the most comprehensible work in the genre, and it has remained to be the standard virtually since its first impression and distribution. The book guides the reader through bibliographical terminology by providing sufficiently detailed descriptions of the various facets of the printing trade from its development in the early modern period right into contemporary publication practices (excluding the rise of computer and internet technology). In my opinion, the serious student of descriptive bibliography should first read Esidale’s work on the subject, and then he/she can move on to McKerrow's book, after which reading Gaskell's “New Intro. to Bib.” would be best way to prepare the student for the more complicated work by Bowers.