 The song titles, along with the highest UK Chart position, and number of weeks in Top 40 are included.The first edition featured this information along, with a list of all the songs in an A-Z list at the end of the book, for easy reference.The second edition of the book, referred to as 'Volume 2', was published in 2010 and had a number of changes, including the addition of a new section listing all the UK No.