The page lists books with dedications to Philip José Farmer. A few are from Farmer's book collection, and include the author's personal inscriptions to him.

STRANGER IN A STRANGE LAND, by Robert Heinlein

Dedication reads:

For
Robert Cornog
Fredric Brown
Philip José Farmer

THE NEW TOMORROWS, edited by Norman Spinrad

Dedication reads:

This book is dedicated to
PHILIP JOSÉ FARMER

SIGN OF THE UNICORN, by Roger Zelazny

Dedication reads:

For Jadawin and his Demiurge,
not to forget Kickaha.

AUTUMN ANGELS, by Arthur Byron Cover

Dedication reads:

This novel is dedicated with love to the many historical and
fictional characters herein lampooned, and to their creators.
Both the creators and the characters have enriched my life. To
Clint Eastwood and Sergio Leone; to Philip Jose Farmer, whose
novels inspired and instructed me; to Robert Silverberg, who
unwittingly provided me with my start; to Jeff Dowden, Fred
Christian, Margie Feldmark, Randle Walsh, and Debbie
Raymond; to David Wise, for providing me with source quotes;
to my parents, Dr. William A. and Margaret Cover, who
helped bankroll this operation during the two years it took to
do the writing; to my brothers James, Bill, and J.R.; and to my
editor, Harlan Ellison, without whom this book would not
have been written, and rewritten, and rewritten, and re ...

Farmer's personal copy of the book is inscribed:

To Mr
Philip José Farmer
with much appreciation
Arthur B Cover

SACRIFICE FOR THE QUAGGA GOD, by J.T. Edson

Dedication reads:

To Philip José Farmer the world's foremost fictionist, genealogist

Farmer's personal copy of the book is inscribed:

For my bueno amigo,
Philip José Farmer,
best wishes,
you-all,
JT Edson

THE SAVAGE MOUNTAINS, by Robert Adams

Dedication reads:

For Philip José Farmer
for Andrew J. Offut
and for L. Sprague and
Catherine De Camp

For George Maccaulay
For Joe Rosenberger
For the members of NYSFS

Most important, for
Mrs. Elnora Adams, my mother.

THE VALLEY OF THUNDER: The Dungeon Vol 3., by Charles de Lint

Dedication reads:

for
Philip José Farmer

because
I can think of no better
opportunity than my work
on this project
to thank him for
all the years of reading pleasure
that he's given me

THE LONG ONES, by Joe R. Lansdale

Dedication reads:

For Philip José Farmer,
whose brilliance is surpassed
only by his talent.

Farmer's personal copy of the book is inscribed:

This one is dedicated to you,
so it had to head your way --
Joe

CYBERMANCY, INCORPORATED, by Chris Roberson

Dedication reads:

for Philip José Farmer
thanks for the seeds

CAVEMAN ROBOT, by Jason Robert Bell

Dedication reads:

This comic is dedicated
to the brilliant
Philip José Farmer.

LORD SUNDAY, by Garth Nix

Dedication reads:

To all my very patient readers,
editors, family and friends; and
to two writers of science fiction
and fantasy who particularly
inspired me to write this series
and lit my path ahead. Thank
you, Philip José Farmer
and Roger Zelazny.

CROSSOVERS 1: A Secret Chronology of the World, by Win Scott Eckert

Dedication reads:

Dedicated, in loving memory, to Philip José Farmer and Bette Farmer.