On a (slightly) related point...words spelled backwords and forwards making the same word are palindromes...my favourite of which is:
The Latin word square "Sator Arepo Tenet Opera Rotas" (The farmer/sower, Arepo, sows the seeds)
It's remarkable for the fact that it reproduces itself if you form a word from the first letters, then the second letters etc. This means it can be arranged into a word square that reads in four different ways: horizontally and vertically from either top left to bottom right or bottom right to top left.

S A T O R
A R E P O
T E N E T
O P E R A
R O T A S

I'm not sure what the type that you used was but...I'll search for it!

----The next sentence is true. The previous sentence is false----