Mini Graphics is filled with primarily business card designs, along with other things that can get print on, like envelopes and stuff.
It's filled with hundreds of interesting designs, some of different shape, and sometimes of different material.
I would say this book is as good as those from "The Best of Business Card Design" series.
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Asia readers can get it from Basheer Graphic Books. Check with Basheer on Facebook or email them (email address is on their Facebook page).