Raymond Smullyan is a unique set of personalities that includes a philosopher, logician, mathematician, musician, magician,humorist, writer, and maker of marvelous puzzles. Because he is a skillful writer and humorist, he enjoys presenting his puzzles in narrative forms that often parody great works of popular fiction.

And he does this so well that his puzzle books are, incredibly, a
pleasure to read even if you never try to solve a single puzzle!
In the volume you now hold, Alice and her friends are back again
for a puzzle romp behind the Looking-Glass...
His characters not only talk and behave exactly like the originals, but the book also swarms with typically Carrollian word play, logic and metalogic problems, and dark philosophical paradoxes.

This book, like Alice's Adventures in Wonderland and Through
the Looking-Glass, is truly for readers of all ages.
For example, the extremely elementary puzzles of Chapter
Four are particularly for the very young reader who has not yet
learned algebra.
At the opposite extreme are the prize puzzles of Chapters Five and Nine; these will intrigue the expert as much as the beginner.