Hi, dunno whether this is the right forum for this question, but here goes anyway :

I own a copy of the Linux book 1.ed.(1997), which has a diffrent how-hard-is-the-book-to-read pyramid than today. Today we have
 Beginner-> <Something> -> Professional

..in increasing hardness of reading, but back then, Wrox had a if-you-think-youre-good-read-this-baby-and-weep class, called Masterclass for the outmost prof. guys.

The question therefore is :

- Does somebody know how many books were published in that category and what they're called and whether a class such as this one will ever emerge again..?

I only know of Assembly Programming, 1995, ISBN :1874416346

..in this class, but found it very hard, which i like about books. I am generally not pleased with beginner or intermediate books, since there's always a missing part.