I was very pleased to receive this book - it will come in useful for many years. I have severe chemical sensitivities and up to date my house looks like "The Day of the Triffids", with spider plants growing all over the place. Now, thanks to this book, I have many attractive plants, I know how good they are at cleaning the air, and my spider plants are gradually diminishing as I find good homes for them.
A very good buy for anyone interested in taking responsibility for their own health - we should all be more aware of the hidden chemicals in our homes.