Lucy, if you make 195 blocks (that finish 7" x 7") you will get a quilt that measures 91" x 105".
If you alternate them with solid blocks, you can get by with 97 or 98 appliqued blocks, depending on whether you put them in the blank area or the colored area on this lay-out:
Attachment {!-- ia1 -->lucyvanpelt3.JPG{!-- ia1 --> not found
I found the book pictured in Amazon: {!-- ia0 -->lucy.jpg{!-- ia0 -->
The complexity of the blocks on the cover of this book, and the size of the project you are thinking about might be overwhelming for a beginning quilter.
You might want to talk her into something else to start with.