A yearbook dedicated to the departed.  See How to Hoodoo Hack a Yearbook.  From North Carolina Wesleyan College's 1975 yearbook.

It's rare to find an anti-dedication / non-acknowledgment in a book.  This one disrespects the Canadian Council for refusing a grant application, putting the author onto the street for an entire winter.  From Incurable Trucks & Speeding Diseases by Crad Kilodney, 1986.

"For what it was, and for what it was not."  From Duke's 1981 yearbook.

A book dedicated to the memory of all good giants, dwarfs, and fairies.  From Ting-A-Ling by Frank R. Stockton and illustrated by E. B. Bensell, 1891.

Time-bending -- a book dedicated to both the present and past self of one Little John.  From The Sandman: His Farm Stories by William J. Hopkins and illustrated by Ada Clendenin Williamson, 1902.

The dedication page from Three in the Jungle by Karena Shields and illustrated by Harold Petersen.

Archibald Marshall's Upsidonia (1918) is dedicated to the three funniest letters in the alphabet: K, M and N.

Don Lancaster's Cheap Video Cookbook (1978) is dedicated to the Yeahbut.

A dedication to a mirage.  From DePauw's 1905 yearbook.

This is the first book we've encountered that is dedicated to Common Sense itself.  From Science Rediscovers God by Barclay Moon Newman, 1936.

Is it just me, or does this dedication page, in a book about an orphan, seem to gloat over the fact that the author is not herself an orphan?  From The House of the Red Fox by Miriam Byrne, 1907.

The most hesitant dedication we've encountered.  From Colorado College's 1912 yearbook.

A great book dedication: "To the friend whom I have never seen."  From The Shadow Witch by Gertrude Crownfield, 1922.

A book dedicated to Tootsy Wootsy Werner the cat -- Werner's Readings and Recitations No. 35 by Mrs. Frederick W. Pender, 1906.

"In memory of a day when the west wind and the rainbow met."  From the dedication in Keynotes by George Egerton, 1893.

"To a playmate who passed": the dedication page of Social Entertainments by Lillian Pascal Day, 1914.

Did you know that there's a book dedicated to a triangle?  Zenia, the Vestal, Or, The Problem of Vibrations by Margaret Bloodgood Peeke, 1893.

There are possible readers of books not yet printed, and here's part of a preface to them.  From Ixora, A Mystery by John Harrison, 1888.

Here's a book dedicated to a real fairy in disguise.  The Fairy who Believed in Human Beings, written and illustrated by Gertrude Alice Kay, 1918.

The dedication page of The Two Story Mittens by Aunt Fanny, 1863.