For a fan of macro shots like me this book is a blessing! Indeed, no more hours lost on the internet to compare the pictures of one and the other to identify the species of the orchid photographed yesterday. This guide contains, besides the description of the biology of orchids and many other information, by gender determination keys (supported photo) and then, once the determined type, key determining species. You will also find the descrition of each species, subspecies and hybrids arrement to present in France, Switzerland and Benelux. This guide has really been thought to the field, it is compact, practical and glossary at the end allows us not to waste time consuming and impractical field research.
In one word: PERFECT.
And if you want more I recommend: Europe orchids Guide, North Africa and the Middle East