The third volume of Congressman John Lewis' graphic novel memoir, "March: Book Three," won't go on sale until August 2016, but the first look at the anticipated release arrived today.

IDW Publishing/Top Shelf has debuted the cover and several pages from the book via The Washington Post. Illustrated by Nate Powell and co-authored by Rep. Lewis' staffer Andrew Aydin, the third and final volume of the acclaimed series details Lewis' involvement in the historic protest in Selma, Alabama, and what happened following that seminal event in American history.

The cover alone for the third book took an extraordinary amount of time to get just right -- about 5 months according to Powell -- due to the need to create a single image encapsulating the entire Selma protest at the Edmund Pettus Bridge. The final artwork depicts Lewis leading marchers as Sheriff Jim Clark orders officers to advance on the protesters, utilizing cattle prods and batons in an attempt to disperse the crowd.

"It shows the apex of the movement," Lewis told the Post of the cover. "It was only on that bridge, in a sense, that we got the Voting Rights Act of 1965, which freed and liberated so many people, whether black or white, whether straight or gay."

"March: Book Three," by Rep. John Lewis, Nate Powell and Andrew Aydin, arrives August 2016.