Is it normal to talk to a girl for one year without seeing her face

You might be catfished. Tell her to show her your face and if in the event that she does ask you for money block and report her.

Have you ever seen Catfish on MTV?

So, talking as in basically just pen pals, or as in online dating? I assume the latter? If so, there is unfortunately a strong possibility you are being catfished.

I agree with Rose that it is better to FaceTime or do some sort of video chat, since whoever you're talking to could send a picture of anyone.

uhh depends on your definition of "talking"

if you're just flirty friends then whatever (but don't be shocked if she's not real), but if you're e-dating someone (serious e-dating even for 1 month+) you should DEFINITELY know what they look like, what they sound like, most things about their real life, etc.

stop edating loser

You're probably being catfished. A picture is not good enough. You need to have facetime!