Design a book cover to attract readers! cover art!

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This customer received 80 graphic designs from 18 designers. They chose this graphic design from Deziners Zone as the winning design.
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Graphic Design Brief
I am looking for a design of a book cover. The working title of the book is: The part time startup: Building a business while working full time Author D. M. Christensen .....while the book is about balancing work, life, and building a parttime startup, it is also about how to make sure you can give the "F You" to your boss. Following this book will help you get that confidence, freedom, and surety that you are ok if you ever choose to leave your job, and make your part time startup full time.As a result, I'm looking for something catchy, funny, and not 'bland' I'm ok with raunchy, and silly - the book iself is supposed to be a FUN way to learn this; not be the bland and normal 'self help' book.
Updates
Gathering more feedback
Target Market(s)
young career (21-28) as well as college/pre college (18-25)
Colors
Designer to choose colors to be used in the design.
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- -a spot for the ISBN number (bottom right back of the book)
- -back cover & front cover and a half inch edge cover
- -bottom left will have my company logo (Tensen Group) which you can add into the mockup if you'd like
Nice to have
- something funny/catching
- book expected size 6" by 9"