Plain and simple, this book is about the love of reading and the joy of giving it to others.
Helen McGill was convinced by her brother to abandon life in the city and join him on a rural farm. They were happy then she remembers, until her brother decided to write a book about their experience and the pleasures of the "simple" life. Since literary fame came to him, Helen finds herself forced to do more of the work around the farm and sees no way out. No way out, that is, until the arrival of Roger Mifflin and his "Parnassus on Wheels", a mobile bookstore which he soon sells to Helen.
Helen happily leaves, leaving the farm to be taken care of (or not) by her often-absent brother. Mifflin travels with her for a time to teach her the trade before settling down himself to write "the" book he's long dreamed of.
This is a short book and a whole lot of fun. Over a hundred years after publication, this book will ring true to booksellers and other book lovers.