Amazon has Star Wars Storyboards: The Original Trilogy (Hardcover) for $28.37 - $4.88 off coupon (check "Apply coupon" box) = $23.49 with free shipping on $25+ or with Prime.

Includes the full set of storyboards by artist Joe Johnston, plus early boards for Episode IV by Alex Tavoularis, early boards for Episode V by Ivor Beddoes, Episode VI boards by Roy Carnon, and Ralph McQuarrie’s storyboards for Episode V.

Looks really cool!