There's not really an answer to this question. A book could have no words, or it could have hundreds of thousands.
If it helps, the Nebula Awards make a distinction between "works of between 17,500 and 40,000 words" and "works of 40,000 words or more", calling the former novellas and the latter novels. Both novels and novellas have been published as books... Hemingway's The Old Man and the Sea, for example, has about 26,500 words.
Usually, when you see a bold-faced word in a non-fiction book, it means that there is a glossary in the back of the book where you can find the definition of the bold-faced words.
Face Book cook ace boo foe
I have to say 4, because that's usually the number of words to be made with a birthday song.
Hot for Words is a book that teaches people things about words they never knew. It is not appropriate for children because the book teaches things in an adult manner.
Bibliography
Last Words - book - has 320 pages.
Many
The book "Hatchet" by Gary Paulsen has approximately 40,000 words.
IN the book charlets web there are 14458 words exactly
"The Graveyard Book" by Neil Gaiman has approximately 96,000 words.
The book "Wonder" by R.J. Palacio has approximately 75,000 words.
The book "If I Stay" by Gayle Forman has approximately 54,000 words.
The book "Swindle" by Gordon Korman has approximately 40,000 words.
500 it a long book
15326
129910 words
It has 393,823 words.