That’s just one of many informed political lessons from Creamer’s new book, “Listen to Your Mother Stand Up Straight! How Progressives Can Win.”

Creamer’s book is a one-stop shop for political junkies, from a novice to a know-it-all.

Creamer is the husband of Rep. Jan Schakowsky (D-Ill.) and touches on in the book how he had time to write it--he was in prison.

“I did much of the preliminary work on this book while spending five months on a forced sabbatical at the Federal Prison Camp at Terre Haute, Indiana,” he writes.

Creamer served time for floating checks, done, he has said, in order to keep the organizations he led stay afloat.

“That mistake certainly had a major consequence on my life and was a big burden to my wife, Jan, both personally and as a Member of Congress.”

While Creamer writes from the progressive Democratic perspective, his chapters on organizing, messaging, demographics and constituency groups comprise a how-to political manual.

He also suggests that liberals toss out that label in favor of branding themselves as progressive, if for no other reason than the right has “vilified” the word liberal so much that’s it’s a negative.