Another short list as we start the (rather chilly) month of April.

It seems a lot of titles have bounced back on the list — the Rumsfeld and Sen. Brown memoirs. The Blackwell & Kulkowski has see-sawed on and off the list since it’s publication just about a year ago. I’ve not yet been able to decipher why, aside from their initial publication, titles will surge on to the list, then drop off, and months later appear once more. And then do it all over again. Book clubs? Institutional sales? Perhaps for ”The Blueprint,” it’s been assigned by the leaders of a conservative group(s) to rally their followers behind the anti-Obama agenda (?). At least wait for the paperback, publishing in June ...

1. Rawhide Down: The Near Assassination of Ronald Reagan

(Henry Holt, $27). By Del Quentin Wilber

FILE - In this March 30, 1981 black-and-white file photo provided by the White House shows President Ronald Reagan waves just beforebeing shot outside the Washington Hilton in Washington. From left are, Secret Service agent Jerry Parr, in raincoat, who pushed Reagan into the limousine; press secretary James Brady, who was seriously wounded; Reagan; Michael Deaver, Reagan's aide; unidentified policeman; Washington policeman Thomas K. Delahanty, who was shot; and secret service agent Timothy J. McCarthy, who was shot in the stomach. (AP Photo/U.S. White House, File) (AP)

2. Decision Points (Crown, $35)

By George W. Bush

3. Known and Unknown: A Memoir

(Sentinel, $36). By Donald Rumsfeld

4. Wild Bill Donovan: The Spymaster Who Created the OSS and Modern American Espionage

(Free Press, $30). By Douglas Waller

5. The Company We Keep: A Husband-and-Wife True-Life Spy Story

(Crown, $26). By Robert Baer & Dayna Baer

6. Against All Odds: My Life of Hardship, Fast Breaks, and Second Chances

(Harper, $27.99). By Scott Brown

7. The Blueprint: Obama's Plan to Subvert the Constitution and Build an Imperial Presidency

(Lyons, $22.95). By Ken Blackwell & Ken Klukowski

Drawn from Book World’s bestseller data supplied by Nielsen BookScan for the week ending March 27, 2011 (culled from the top 50 titles sold). The chart may not be reproduced without permission from Nielsen BookScan. Copyright © 2011