My 5th grade son read this for a book report. It was a very good introduction to Einstein's life and the social and political environment that surrounded him. As with other DK books, this one has many photos -- of Einstein, the places he lived or studied, and of other historical figures that were an influence on his life. The many illustrations tend to catch the reader's eye and thereby draw the reader into the narrative. The biography includes the difficulties of his childhood and his later personal life and paints a very human picture of what otherwise is an icon of science. My son was impressed that Einstein was an indifferent student who cut many of his classes and was considered by his teachers as a "lazy dog." Yet, he later succeeded in solving some of the greatest challenges in physics. In other words, a person's talents as an adult are not necessarily predicted by success (or lack thereof) in school.
There are appropriately simple explanations of Einstein's principal papers (which a non-scientist adult reader would find illuminating) and good anecdotes of the circumstances in which he got his ideas. Take, for example, this passage about his conception of the Equivalence Principle: " 'I was sitting on a chair in my patent office in Bern. Suddenly, a thought struck me: If a man falls freely he would not feel his weight. I was taken aback.' . . . This led him to conclude that gravity (the force of the earth's pull on all objects) and acceleration (the force of an object falling freely) are equivalent."
4th/5th graders might find the writing in the book a little advanced and adults will find this a fascinating quick read. A real bargain at $4.99.