>> I tried it in both places. Let me be more specific; perhaps this will
>>help. With \thispagestyle{empty} on a line immediately following the title
>>line I see this in the .dvi output:
>>
>> Title page -- unnumbered
>> Publication information/copyright page -- unnumbered
>> Preface (first page) -- unnumbered
>> Preface (second and third pages) -- numbered 4 and 5
>> Table at end of Preface -- unnumbered
>> Table of Contents (first page) -- unnumbered
>> Table of Contents (subsequent pages) -- numbered beginning with i
>> Introduction (first page) -- unnumbered
>> Subsequent pages -- numbered beginning with 2.
>>
>> So, the only pages that need to have the pagination removed are the middle
>>pages of the preface.
\thispagestyle{empty} is only active in the page where it belongs
(anywhere in the page), so you need to insert two commands of the like
in a way such they are in pages 4 and 5.
Putting it near Preface will say it twice if the title pages
are already empty....
Hope it does the trick :-)
--
Jean-Pierre