CCIE R&S workbooks, bootcamps...

Hey guys,

I need some advice on which workbooks and bootcamps is the best? INE, ipexpert or Global Knowledge?

INE workbooks contain 4 volumes
ipexpert worksbooks contain 3 volumes, plus there are additional "walk-through" videos (in which i dont think you have to have it)

What about bootcamps?

Thanks...