This book is so outdated. Stay away from it. Book is 13 years old. Not in touch with today's internet environment. I bought it for a Domain Names class I am taking. I paid 1 dollar for it (the book actually had a yard sale tag on it that said 50 cents. I guess it would not even sell for that). It might have had a place at one time. It now needs to be retired. Don't waste your money or your time on this book.