I THINK THAT THE COLOR BOOK COVER IS MORE APPEALING THAN THE BLACK AND WHITE COVER.

This cover really comes alive due to the strong colors and depth of field. the contrast is exception when compared to the other option.

This version looks more like a book cover, is easier to read, and doesn't have a lot of negative space like the other version.

Option A is less intimidating and far more friendly looking. The colors are also more inviting to the eye.

models look friendlier

this one is more interesting

Better looking and colorful

Color cover is better art, website on the other option makes it look like the book will simply be transcribed web content.

Prefer color over the black and white. Also it lets me know it is built for a person not in their 20s which I sadly am no longer in.

Option A appeals to both genders whereas option B seems to only be targeted towards males. Targeting a single demographic will result in fewer sales. Which are you more concerned with? If you only care to target males, then go with option B. If you want to make more money, go with option A.

I like the two people with the attractive woman rather than the shirtless man.

The inclusion of superfitdads restricts the demographics that would be interested. The picture of the guy isn't that inspiring either. A's picture isn't much better but it's more inclusive.

prefer option A as it is a much more colorful and eye catching cover with real normal and appealing looking people as opposed to option B with only a boring black and white photo which does not stand out and is not at all eye catching.

Denotes a simpler way to stay in good physical condition.

While I do like the "finished product" (body) of B, having only a man on the cover may be off-putting to women readers.

Seems more friendly and inviting.

The guy in B looks like he's working hard while the two people in A look like they're having fun

This one looks more professional which would make me feel the book is more trustworthy.

makes more sense as book cover

This cover is appealing to a much wider range of people.

It's warmer, more inviting

This one seems less self-helpy.

The bulletproof description fits the runner more. Plus more skin is always better if you're trying to sell a few extra copies. It doesn't have to riske, exhibit B.

"get lean, get strong, and bulletproof" is terrible grammar

I think option b better matches up to the book title

This cover is more minimal.

I like B more than A. I think A looks too generic, like every other fitness book. I like B because it looks like someone about my age exercising and in good shape. I feel like it is more relateable to your target audience.

The cover of Option B is more motivating.

The font is good, readable and clear. The picture is intense and interesting. The font, picture and colors mix together well and paint a positive picture of the overall book. It grabs my attention quickly.

I prefer option B because it looks more like a workout book whereas option A looks like it's going to be a book on dating.

Since this is for males only I am going to say I don't like the lady being on the cover. If it is for men, I like just having a man on it. I don't know if that makes sense or not

B looks pretty manly. A looks more like a poster to a lame Hollywood romcom.

The text is clearer and easier to read against such a background.

Option B actually shows someone doing physical activity

Looks more powerful

Has a better cover picture

This side looks a little more like how the title is advertising, while the right side doesn't have the same kind of edginess that the left side has. I feel like the left side stays a little more true to the title than the right side does.

Clear title, easy to read and understand. Good picture too.

It seems more serious in black and white

I prefer Choice B since it seems more serious with the black and white picture and sparse text. Choice A seems more like a magazine cover with the extra text. I also don't like the zoomed in picture on Choice A.

change the image in back

I'm a dad, so this book looks more interesting to me.

I strongly prefer answer choice B, because the ad in color is so much better than in choice A. The picture in choice A almost looks more like the guy that is in it is anorexic. I also like how in choice B that there's a description underneath it as well. That's a lot more appealing to the users eye when you have a description to go with the picture.

I like the fact that this one is basic and has less going on on the cover

i'm not a fan of either but i guess i can relate to the guy in "B" better.

The picture more closely matches with what seems to be the point of the book.

The cover looks more professional.

I like the black and white

It shows how it is done

I think the image on cover B makes more sense visually with the title that includes the word 'bulletproof'.