Total number of books owned?
I think about 300. But I'm honestly not sure.
The last book I bought?
Book, by Robert Grudin. An odd little novel my mother and I encountered once at Borders; very erudite and stylistically playful. e.g. The footnotes are sort of like characters or a Greek chorus -- they refer to each other, and do not necessarily appear in order or uniquely. It seemed quite entertaining, but we didn't buy it at the time, and then when she decided to go looking for it again neither of us could remember the author. I got two copies, and gave one to her.
I also recently gave the first four Asterix books for my nephews, and acquired the textbook for my Stats class.
The last book I read?
I recently started reading City of Golden Shadow, the first volume of Tad Williams' Otherland. I'm having trouble recollecting what the last book I finished was. It might be Kil'n People, but I have the sense that I read something non-SF in between that and starting Otherland. I know I read a bit of "Paradise Lost" in my collected Milton, which I've been in the middle of for months. And I caught up on a couple issues of Analog... My memories have turned into a chronologically chaotic mishmash. *sigh*
Five books that mean a lot to me?
I'm cheating and including multiple books under some list items...
- The Neverending Story, by Michael Ende (the childhood book that has best stood up to aging, and kept providing new insights)
- Haroun and the Sea of Stories, by Salman Rushdie (along with Winnie the Pooh by AA Milne, The Just-So Stories by Rudyard Kipling, and many other wonderfully readable books from my childhood)
- The Thirteen Clocks, by James Thurber (a romantic fairy tale for grown-ups)
- Gödel, Escher, Bach: an Eternal Golden Braid, by Douglas Hofstadter (which introduced me to many concepts about the mind and philosophy, and remains one of my favorite non-fiction books; Le Ton Beau De Marot: In Praise of the Music of Language is also fantastic)
- The Name of the Rose and Foucault's Pendulum, by Umberto Eco (showing just how deep a novel can be)