This book is a reworked update of the original paperback book released in 1993 and based on the original tape series and workbook first released in 1983. Both were considered exceptional sellers for Australian business books. In fact an Amazon copy of the Over 50 Ways of Closing the Sale paperback being sold on ebay was offered to buyers for in excess of UK 80 pounds a copy (possibly around US $150 and AUD $200) in mid 2015. The same book sold for $19. 95 for each of the 3 editions in Australia between 1993 and 1995. There have been some interesting editions and updates that have brought the original book into line with the other six now available for sale in 2015.