Should you judge a construction marketing book by its cover?

Actually, I welcome your judgement about which cover to use for my upcoming new e-book:
Social media and marketing for architectural, engineering and construction companies

What you really need to know to achieve profitable results

First cover choice

Second cover choice

Third cover choice

Designer Raymond Levielle initially came up with seven distinctive cover designs.  That is a pretty huge number for a general survey, so I asked employees and a special group of trusted reviewers to share their opinions.  They narrowed the choices down to these three (and one reviewer suggested a rewording of the title -- not actually reflected in these covers, yet.)

You can vote on which cover is your favorite by clicking below any of the covers or going to this special survey website.

If you wish, upon completing the survey, you can request to be notified about when the book is published, and save $2.00 on the  $5.95 cover price.  If you wish to save even more, you can prepay through PayPal for $1.95 (100 per cent unconditional money back guarantee).  If you have purchased Construction Marketing Ideas: Practical strategies and resources to attract and retain clients for your architectural, engineering or construction business or are an advertiser in one of our publications, the book is free.