Patricia Polocco has several holiday books, and this is certainly not the most popular, but it's my favorite. There aren't many picture books out there that involve both Christmas and Hannukah and this one combines them so beautifully.
I'm borrowing the publisher's description:
TRISHA LOVES THE eight days of Hanukkah, when her mother stays home from work, her Babushka makes delicious potato latkes, and her Grampa carves wonderful animals out of wood as gifts for Trisha and her brother. In the middle of her family's preparation for the festival of lights, Trisha visits her closest neighbors, expecting to find them decorating their house for Christmas. Instead they are all bedridden with scarlet fever. Trisha's family is one of the few who has been spared from the epidemic. It is difficult for them to enjoy their Hanukkah feast when they know that their neighbors won't be able to celebrate their holiday. Then Grampa has an inspiration: they will cut down trees, decorate them, and secretly deliver them to the neighbors. "But what can we decorate them with?" Babushka asks. Although it is a sacrifice, Trisha realizes that Grampa's carved animals are the perfect answer. Soon her living room is filled with trees-but that is only the first miracle of many during an incredible holiday season.
Based on a long cherished childhood memory, this story celebrates the miracle of true friendship.