Like the other LPBD books, this glosses over the 'negatives' - at least for the first subject, Albert Einstein. It's all about how he strove for peace and love and blah blah blah, nothing to do with his contributions to blowing things up (or how his work was used for this).
With the second subject, Stephen Hawking, they do at least show his health challenges, which is atypical of the series; but they then gloss over his discoveries!