The book "Elvis - The King Of The Jungle - 45 Years After" by Erik Lorentzen is at the printers and should be ready soon.
From the press-release:
In June 1968 Elvis Presley taped a television special to be broadcast that Christmas. The TV special "Singer Presents Elvis" was is a great moment in music and a key to Elvis musical renaissance. "A moment of change, when what was lost is found again. Elvis was lean and chiselled and -- what he had not seemed in years -- a little dangerous." Featuring 544 pages the book will include a detailed at everything that took place at the historic taping and recording sessions. It will also include eye-witness reports from lucky fans that were present at the legendary NBC performances.
(Source: Elvis Information Network)