This matches up extremely well with Lost Boy, Lost Girl to compare fiction and nonfiction about the Second Sudanese Civil War. While Linda Sue Park says this is fiction, she does mention how closely she based it on the real Salva Dut’s life. Like in Lost Boy, Lost Girl, the depiction of human perseverance in spite of horrible circumstances is amazing.
The really cool part about Long Walk is that it has an interwoven story from 2009 with an update on how southern Sudan is doing. What I love is that Salva Dut, just like John Bul Dau, hasn’t just enjoyed his time in the United States; he has gone on to found Water for South Sudan, an organization to install wells for clean water. Go check them out.