Originally written (to the same tune) as "Bookroom Blues" and starting "In my first hour in the book room I bought at a dealer's stand", but easily re-worded:

On the first day of Christmas my reading list I planned,
"A Stranger in a strange land".

On the second day of Christmas my reading list I planned,
Tolkien's "Two Towers"
And "A Stranger in a strange land"

On the third day of Christmas my reading list I planned,
"Three against the Witch World"
Tolkien's "Two Towers"
And "A Stranger in a strange land"

On the fourth day of Christmas my reading list I planned,
"Four from planet 5"
"Three against the Witch World"
Tolkien's "Two Towers"
And "A Stranger in a strange land"

On the fifth day of Christmas my reading list I planned,
"Jeffty is Five"
"Four from planet 5"
"Three against the Witch World"
Tolkien's "Two Towers"
And "A Stranger in a strange land"
. . .
. . .
By the twelfth day of Christmas, I had at my command:
"The wind's twelve quarters"
"Station Eleven"
"The machine in shaft 10"
"Nine princes in Amber"
"Our friends from Frolix 8"
"Seven steps to the sun"
Heinlein's "Sixth Column"
"Jeffty is Five"
"Four from planet 5"
"Three against the Witch World"
Tolkien's "Two Towers"
And "A Stranger in a strange land"


Any Sci-Fi or Fantasy readers will recognise some of the above.