I don't see a Request button for the book I need in Worldcat.
Answer
Please check if the book is an ebook or a print title. Very often, you cannot request ebooks through Interlibrary Loan. Print titles should have a Request button if we don't own the book or it's not available from the Brown Library at this time. Many ebooks will not have a Request button. The format of the book can be found right under the author's name in the short record.
If you do see an ebook in Worldcat, you may try to request it via your ILLiad account.http://illiad.brown.edu . Please see this FAQ for information.