/cgl/ - Cosplay & EGL

>friend of mine has low self-esteem after being a whale since we were kids
>gets her first boyfriend at 23yo
>is dating some fat, bald neckbeard because she thinks he's the only person who will ever love her
>he yells at her all the time, calling her a whiny cunt
>when I bring him up, she'll crumple and cry
>admits she's being stupid, but doesn't want to be alone
>she thinks no other guy will find her attractive
>she's pretty
>she just doesn't go out much
>says he's the first one to ever make her feel beautiful
>he has anger issues
>I've heard him scream that no other guy would want her on the phone
>I want to shake her until she realizes this guy is a piece of shit

My sister wants to get into cosplay it seems. This doesn't thrill me as shes only 13 and I know a large part of the popularized portion of cosplay is quite sexual however she shys away from a lot of adult-oriented things like scary & gory horror movies/games so I trust her a bit.

I was wondering if maybe there were some Christmas gift ideas to get her started with cosplay, maybe a book or something I can get her. Any ideas?