Right! I want to learn 68k assembler!

[ZeBeeDee]

You could start with some basic projects like those listed here or here

Books on this subject are a bit on the rare side these days ... people tend to hoard them for their own coding efforts.

[ZeBeeDee]

Try this:

Go to Amazon.co.uk and enter Amiga Assembler in the search box  :-)

*Addendum*

This was also discussed in another thread on A.org here

Hope it helps!