A Dragon's Guide to the Care and Feeding of Humans
Even though Winnie's situation is somewhat sad (her father passed away when she was young, her grandparents disapproved of her mother, and things were not easy), things are improving, and the discovery of Miss Drake doesn't faze Winnie at all. The two have an uneasy relationship at first, with Winnie thinking that Miss Drake is the pet, but they both come to see that the other has skills and powers that are valuable.
This reads much like classic children's fantasies such as No Flying in the House or the Ruth Chew books, and the reader is sent right into a magical world without apology... and the world makes sense because we want so much to believe it is true. Flying on a dragon to a magical shop over San Francisco? Absolutely. A magic sketchbook that brings drawings to life? Hand it over. A tiara with a tiny dent where the pteranodon bit it? I will fight all of the pemburus you want me to as long as I can have a dragon like Miss Drake living in MY basement!
An excellent choice for a first fantasy book, A Dragon's Guide to the Care and Feeding of Humans was a heartfelt magical romp with lots of adventure as well as some deeply poignant moments.