This would be the book within a book. He's asking for the book that tells history the right way, our post WWII history. The Man In the High Castle is the name of the book by Philip K Dick. It's alternate history fiction where the Axis wins WWII. Now the book is a new historical series on Amazon. In the plot of that book, the novel Grasshopper Lies Heavy tells the story of the Axis losing WWII and is illegal in Germany while legal other places.
The phrase grasshopper lies heavy is a portion of Ecclesiastes starting at 12:1 where followers are instructed to remember their creator in highly poetic and labored terms. Remember your creator in the days of your youth before the days of trouble come. Then 12:2 before the sun and light and moon and stars grow dark and the clouds return after rain. Then 12:3 when keepers of the house tremble, when strong men stoop, before your eyesight goes dim. Then 12:4 When the doors to the streets are closed, and grinding stops and people are startled by birds without enjoying their song, Then finally, and this is where the ancient writer really lets himself go 12:5 when you're so old you're afraid of heights and too scared to go outside and your hair turns white (the almond tree blossoms) and the grasshopper drags himself along instead of springing and even caperberry can't get you hard anymore and you go to your rest and your mourners are all moping around, remember your creator.