The Little Schemer - Where to start?

Question

I just cracked open The Little Schemer, and I feel like I\'m missing something.

The first question asks \"Is it true that this is an atom?\", but I do not see any defi

Answer 1

An atom is a basic unit in Scheme such as a number or a character.

car returns the head of the list whereas cdr returns the tail.

>(car '(a b c)) ; car returns the first element in the list...
'a
> (cdr '(a b c))    ; cdr returns the rest.
'(b c)

I would start with a basic tutorial.