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Useful Books:

Gothic and Lolita bible
Publisher: index magazines
ISBN: Various
Language: Japanese
Details: This is literally the bible for lolita fashion. It contains lots of pictures including most of the major gothic and lolita brands, snapshots of Japanese youth wearing the clothes, photoshoots with J-rock stars, hair and makeup tips, recipes and more. Although this book is in Japanese its well worth buying because of all the pictures.

Gothic and Lolita Hair and Make-up Bible
Publisher: index magazines
ISBN: 4860481518
Language: Japanese
Details: This is a great companion to get along with Gothic & Lolita Bible Extra if you cant get hold of earlier editions of the original bible. I've heard that it repeats some of the earlier beauty sections of the bible plus a whole load of new stuff.

Gothic and Lolita Bible Extra
Publisher: index magazines
ISBN: 4860481690
Language: Japanese
Details: Ive heard that this book is the best book for sewing lolitas other than the out of print " Handmade Gothic and Lolita." It has loads of hints and tips on how to make everyday garments lolita-ish as well as two pattern sheets.

Cosmo - COStume MOdel Magazine
Publisher:
ISBN: various
Language: Japanese
Details: This is mainly a Cosplay magazine however it has a lot of lolita and visual kei clothing. Full-page color photos of popular costumes and cosplayers posing, tips on how to do your make-up and hair, clothing designs and a ton more. I have heard that Vol. 3 has a large Baby Stars Shine Bright spread and paper patterns .

Handmade Gothic and Lolita
Publisher: boutique-sha
ISBN: Out of print
Details: This title is the best magazine for any gothic lolita who sews. Basic patterns cover most styles of gothic and lolita clothing. Step by step sewing guides with pictures mean you don't really have to understand Japanese, though beginners may get slightly confused. Patterns in this book don't have a seam allowance

Gosurori/Gotsulilo
Publisher: boutique-sha
ISBN: various
Language: Japanese
Details: This is the newer version of Handmade gothic and Lolita. Its full of pictures of the styles, and instructions and patterns that you can follow to make your own versions. Everything is illustrated so that you don't have to understand Japanese.

Rococo
Publisher: Tatsumi Publishing
ISBN: various
Language: Japanese
Details: This magazine mixes lolita with other styles like punk. The Avaunt Gauche creator says that it is more Kera than Gothic Lolita and reccomends buying kera maniax instead.