Secret Messages in Cerebus

First up, we have page 71 of the first volume where you can see the letters F-U-C-K in the background behind Sophia.

Next, we have page 479 (page 467 in the early printings) of the first volume where you can see the names "BOB R" "MRS RITTING" "DARLENE" and "KAREN" in the design on Weisshaupt's vest. Enlargement turned sideways.

Third, we have page 481 (page 469 in the early printings) of the first volume where you can see the name "KAREN" in the design on Weisshaupt's vest. Broken into two parts - "KAR" "EN."