A reference for the whole family

It is a reference book to have in your library. Immediately, one is seduced by the format of the book and flipping through it easier. It can attack early on to read in chronological history, as a history and thus understand the causes and outs or browse it as an encyclopedia by choosing a theme, a place, a character, or an era.
My son, first grader, has already passed.
Accurate and complete clear, this book is invaluable both for students preparing for examinations of adults who vied to enrich their knowledge.