language

The Al Bhed have their own language, called Al Bhed. In the beginning you don't understand any of it, but that can be fixed with Al Bhed Primers.

ENGLISH TO AL BHED
A = E	N = R
B = P	O = Y
C = S	P = B
D = T	Q = X
E = I	R = H
F = W	S = M
G = K	T = D
H = N	U = O
I = U	V = F
J = V	W = Z
K = G	X = Q
L = C	Y = A
M = L	Z = J

I personally think Al Bhed is a wacky language. I mean, wouldn't it be so easy to learn new languages, if all you had to do is connect the right letters with each other? And Al Bhed sounds fun, it's almost like German/Romanian, but not even near. It's kind of nice to hear the 'r' sounds in between the English dialogue.

information; primers

There are 26 primers in Spira, one for each letter. Here are the locations for FF10. I can't give you specific directions on some points, I don't remember the game THAT well (actually, now I'm suprised I remembered it this well back when I did this...shows what a nerd I am =P). When you re-play the game, you can load the primers from your previous saves and you know the language from the start!

As for FFX-2, you get primers as you talk to Al Bhed or go digging at Bikanel Island. The Primers last in your saves when selecting New Game+

1) on deck of the salvage ship, where you first meet Rikku.
2) in the Crusader's Lodge in Besaid village, at the reception desk
3) Engine room of S.S.Liki
4) Kilika, in the "bar"
5) Bridge of S.S.Winno
6) Luca, Behind the Ronso blitzers, in the hallway leading to Luca Goers' lockerroom.
7) Luca, in front of the reception table of luca theater
8) Mi'Hen Highroad, you get it from Rin
9) Mi'hen Highroad, North newroad. It's in the middle of the road, easy to see.
10) Mushroom Rock Road, Precipice. Go to the end of the swirly path
11) Djose Highroad, behind a rockpillar
12) Moonflow, North Wharf
13) Guadosalam, a house to the left of Seymour's mansion. Just push X until you find it.
14) Thunder Plains, at Rin's agency
15) Macalania Woods, near the save sphere before battling the Sphere Monster
16) Lake Macalania, in front of the agency
17) Sanubia Desert, Central
18) Sanubia Desert, Central Area
19) Al Bhed home, in front of the entrance
20) Al Bhed home. Go down the stairs, battle a Dual Horn, go the stairs back up and enter a room holding the primer.
21) Al bhed home, main corridor
22) Bevelle Temple, go towards the Cloister of Trials, it's impossible to miss this one.
23) Calm Lands, northwest of the agency. You'll find the chocobo trainer there, too
24) Remiem Temple, near the left chocobo
25) Cavern of the Stolen Fayth, it's in there somewhere near the save sphere.
26) Omega Ruins, in the far back. I suggest having 'no encounters' before you go searching for it.