Difficult Review
Not an easy review to write. I had expected a catalogue of the collection of plans held in the Smithsonian, but this is a catalogue of models, so it was not what I wanted. However, the book is packed with information and well put together. I took off one star because it was not what I wanted, but it probably deserves five, as it is excellent in its kind. If you want a clear description of the excellent model collection held by the Smithsonian, this is it and, as what it is, I cannot recommend it too highly.