This book contains detailed discriptions of uses, parts to use, drawings, how to prepare. In addition has the latin scientific name. With the cost of precription drugs these days, this could be a good resource. While not a replacement for a doctors visit, it is an asset for basic care for colds and minor issues. I once made a 'cold cure' mix, following the information in this book, that really kicked my cold in the rear end. I had to quit loaning it out to friends, because I never got it back.