Will give one dollar

Somebody help me.

I need to know what the fuck the rtb and rff filetypes are in relation to software development. I tried googling but it didn't help.

This is for an interview for a position in which I will be using these file types.

Will give on dollar in the form of a money order, cash, or paypal.

>>2

This book is overhyped and useless for non-Scheme programmers. The obscure and non-intuitive syntax(with plenty of parenteheses) of Lisp + heavy abuse of recursion means people learn bad coding habits. If you want to learn practical programming use a book suited to your language of choice, or a language reference/manual.