I have written a recently published book, titled "Don't Repot That Plant and Other Indoor Plant Care Mistakes." It is based on my 35 years of professional experience caring for plants in homes and offices and answering tens of thousands of specific plant care questions online, via email and over the phone. I have also made hundreds of Plant Doctor housecalls in NYC.
You will find some of the information I have provided elsewhere on this site, specifically the Gardening Forums section.
If you have more than a couple of indoor plants and are eager to learn how professionals care them, you will want to add this book to your collection. It is not encyclopedic covering thousands of plants. Rather it provides in-depth information not found elsewhere on caring for the 50 most commonly used indoor houseplants.
My book is available in bookstores and online. (It is not self-published)