[Elecraft] K4 Books

[Ian Kahn, NV4C]

All,

I have a question that is probably best answered by Eric, Wayne, or one 
of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to 
write a K4 book, are the UI and firmware close enough to that of the 
K3/K3S that we can use those books to learn it? Or, is Elecraft working 
with another author (hopefully of Fred's skill and stature, but that 
would be very hard to find) to write a supplemental K4 book? Or, are we 
all just out of look in that department?

Thanks and 73,

Ian, NV4C