I've designed over 60 Book Pins for Ideal Bookshelf (not quite all of them are shown here). I love the challenge of capturing the essence of a book in an inch square(-ish). They are all hard enamel, mostly with gold-plated outlines.
Book Pins! – Jane Mount
Jane Mount's Book Pins
Book Pin: HP #1 – Ideal Bookshelf
Jane Mount's Book Pins
Book Pins & Charms – Ideal Bookshelf
janemount - UK
Jane Mount's Book Pins
Gift Guide 2017: Women
Jane Mount's Book Pins