This is not a book to be read by a casual reader. If you love words, well then you will enjoy reading this. I read a few pages each morning. It reminded me of when I was a kid reading the dictionary each morning. I can not imagine how much work the authors must have put into writing this book. Their effort is easily worth a 5. I might just go back and change my ratting to a 5. This book will go now to my reference book shelf.