#81 and #82 These designs are ineresting. They are crisp and professional looking, with a modern look to the book. The colors in #82 pop more which is why it is ranked higher. My once concern is the consideration of negative space and how a logo like this, with the icon on top, might work on a Web page.
#140 and #141 These updates are great. I especially like the text coming out of the pages on #140.
#142, #143 and #144 Definitely creative designs; I think the pages creating the final 'k' in the word cookbook is a little too abstract for what we're looking for.