I have dug up a 1988 issue of "Comics Scene" magazine (from the publishers of Starlog/Fangoria), which features a very in-depth article about The Thief, called "Richard Williams and The Thief: 23 Years of Arabian Nights." (An ironic title considering the Miramax title!)
Williams didn't allow any actual artwork from The Thief to be used in the article (Roger Rabbit artwork is included instead), but talks about it at length.
I was 7. I slept on Roger Rabbit bedsheets. I had a Roger bendy toy and a Jessica PVC. You better believe I was interested in The Thief.
Weirdly, the article mentions "Princesses Yumyum and Meme" ... but doesn't mention Tack.
The issue also talks to John Byrne about the She-Hulk (a definite favorite of mine when I was about 12-13, and still great), they talk to Alan Moore, which went over my head at the time, discuss Garfield and Friends, Teenage Mutant Ninja Turtles, Bakshi/Kricfalusi's Beany & Cecil revival (which I was interested in having been reared on the original, but which was cancelled immediately) ...
Seriously, reading this, times have not changed a bit.
I also dug up my copy of Williams' The Animator's Survival Kit, and Tony White's The Animator's Workbook. The White book I also received in 1988 ... Christmas 1988. Hell of a book to dump on a 7 year old. Then again, at 7 I wasn't much different than I am now.