Letter V

Silly Tilly's Valentine by Lillian Hoban
Valentine Mice! by Bethany Roberts
The Valentine Bears by Eve Bunting
The Velveteen Rabbit by Margery Williams 
The Ugly Vegetables by Grace Lin
June 29, 1999 by David Wiesner
Volcanoes: Mountains That Blow Their Tops by Nicholas Nirgiotis
VeggieTales Books

Letter X

A Fox: The Sound of X by Alice K. Flanagan
Fox in Socks by Dr. Seuss
Hattie and the Fox by Mem Fox
The Adventures of Taxi Dog by Debra and Sal Barracca
The Taxi that Hurried a Golden Book
The Crayon Box that Talked by Shane DeRolf