Hi, I have a new book to design, but I don't know how to do page/content conditional processing). Please help me:) - I want my chapter page (first page of each chapter) to be really distinctive. that is, I define a dark color background, and want all the text on the first page set in white. how can I do that? for example \chapter{hello} \dorecurse{10}{\input zapf } % all the characters in the first page should white, others should set in black. - I want to insert graphics and images. all the graphics are inserted using \placeexternalfigures. I want all the pages where the insertion happens to be quite distictive (that is, have a very narrow text layout, and leave the large margin for the figures. However, when a page starts, TeX does not know wheter or not an external figure will be placed on this page, so it really has no idea whether this page should be set narrower or not..... how can I do that? Thanks. Yue Wang