Height by width and a ruler. :)
Scale
I will measure a book with grams
You would typically use inches to measure a paperback book. You can measure the length, width, and thickness of the book in inches to determine its size.
I would measure it with a ruler.
What measure of units would you use to measure the thickness of a phone book
You measure it.
Instruments such as calipers, rulers, and tape measures can be used to measure the width of a book. These instruments provide an accurate measurement of the book's width in either inches or centimeters.
it depends if its small kilo but big grams
how
With a ruler..... hahaha
inches
0 - 1 inch Micrometer might be better to measure 10 pages and find the average.
honestly, it depends on what kind of book you are talking about you can measure your book by using a ruler, weight, or more.