I live in the tropics (Solomon Islands) and operated a tropical nursery and flower farm in Northern Australia for ten years from 1985. I have an extensive botanical library and just finished reading this book. I found it to be the most comprehensive guide on tropical orchids that I have seen (and there are quite a few books on this subject).
The photography is really excellent with a large diversity of tropical orchids in beautiful colour and shown in a variety of situations. The book is suitable for novice orchid fanciers up to and beyond intermediate growers. The symbol key right at the front of the book makes referencing so easy and the content is comprehensive, yet easy to read for beginners and professionals alike.