Transposition Ciphers
-  Re-arrange order of letters
-  Write-in in a geometrical figure (square, scytale)
-  Take-off in a specified order
-  Key is the figure and the order
Example
1 2 3 4
T R A N
S P O T
I T I O
N X X X
Take-off as 2, 4, 3, 1: RPTXNTOXAOIXTSIN
Try RAYXPAIXYNSXCTLS