If I recall Disneyland correctly from when I was a kid, that’s;
E
N
C
Y
C
LO
PEDIA.
Please feel free to correct me if I am wrong.
I checked the plural of encyclopedia and it said it can be pedia, pediae, or pediae with the last two letters space less. So who knows. We both know those books are rarely used and just gather dust.
Nice that if I need some info, I can just use my handy dandy iPhone -——wherever I am. Love it!