The history is in summary form, but there are endnotes with further sources.
The book opens with a brief discussion of myth Vs. historical method. This is followed by an abbreviated history of slavery from the beginning of the slave trade to emancipation and migration. Although I am fairly familiar with the topic (having read The Great Migration, I learned some new detail (the migration to the plains). And the quotations from diaries and WPA recorded oral histories added an important dimension.
Brackman links each stage of the history to a quilt block by the name of the block, a story telling method she links with the 20th century. The idea is to create a mnemonic for remembering the history.
The block patterns and quilt layouts are clearly explained and illustrated, but she refers readers to other how-to books for basic quilting instructions. She also includes suggestions for adapting the history and sewing to children (in formal and informal settings) and includes possible discussion questions.