According to metria's cake calculator, based on volume and standard-sized 8 cu. inch servings, a 9" x 13" cake would serve 28 or 29 people (I'd say closer to 24-25, but anyway, more than you need). I just did a stack of closed books for a graduation ceremony (not in my photos yet), and each one was a 9" x !3" cake, which I cut down to about the size of an encyclopedia volume each. They worked very well. It seems like if you cut this cake in half and stack it, your book would be 6 1/2" x 9" and 4" thick. Are those the dimensions you want? Send us a picture when it's done. They're lots of fun.
Quote by @%username% on %date%
%body%