The full book production service -- from interviews, writing and indexing through to editing, design and printing of 500 hardback books -- starts at about £28k. Minimum start-to-finish time would usually be 5 to 6 months.
For TALKS or SCHOOL VISITS relating to US President John F Kennedy or to Conspiracy! 49 Reasons to Doubt, 50 Reasons to Believe, email email@example.com. For GHOSTWRITING PROJECTS, see www.ianshircore.com or email firstname.lastname@example.org