Shivprasad Koirala has written/composed an excellent pdf file of interview questions on .Net, anyone attending interview on Microsoft technologies will benefit a lot from reading this. It's a pretty big .pdf file having around 528 pages. Even though I have not read through from end-to-end it covers many areas of Microsoft Technologies upto .Net 3.0.
But even others not looking from interview perspective has lots to learn from this .pdf file and brush up their knowledge on various subjects. It's a pretty nice gesture by the author to publish this well compiled .pdf file free for users.