Book bytes.(publishing industry)

COMEDY CENTRAL

So what if Jay Leno's book wasn't exactly a blockbuster? Publishers are still hoping for more successes along the lines of Seinlanguage et al., with Jon Stewart and Drew Carey the most recent recipients of reported million-dollar advances each to yuk it up in print. Stewart, who was repped by William Morris agents Dan Strone and James Dixon and manager Jimmy Miller, will write a humor book of observations and musings for Rob Welsbach and his Morrow imprint. Welsbach plans a spring 1998 publication, to coincide with the start date of a new late-night talk show for the MTV personality that's being developed by David Letterman's production company. Carey, star …