"The Popnecker Papers: A Herbie Story," by Bob Hughes. Amazing Heroes #173, November, 1989, pp. 44-53.

This is the article that got me started collecting examples of recurring themes, particularly the handy items.

Scott Shaw! discusses Herbie in 14 Oddball Comics columns from 2001-2004: FW #114 + FW #116 + Herbie #8 + #10 + #11 + #12 + #13 + #14 + #16 + #18 + #19 + #20 + #21 + #23. The articles move occasionally, so the links and pages are sometimes broken.

"Forbidden Adventures: The History of the American Comics Group," by Michael Vance. AlterEgo #61, August 2006, pp. 3-73. Expanded from Vance's 1996 book. Appendices appear in following issue. Issue contains other material on ACG.

Remarkable book on the people who brought us Herbie and many other titles, with added pictures and artwork. Download the PDF for $2.95.

"Forbidden Adventures: The Back Pages" by Michael Vance. AlterEgo #62, October, 2006, pp. 24-41. Issue contains other material on ACG.

The appendices from Vance's history of ACG, with artwork not included in the original book. Download the PDF for $2.95.

Herbie Archives Volume 1. Reprints of five stories from Forbidden Worlds and Herbie comics #1-5. Winner of the 2009 Eisner Award for best humor publication of 2008. Published by Dark Horse, 2008-Aug-20. Available at Amazon.com and TFAW

Introduction by Scott Shaw!

Herbie Archives Volume 2. Reprints of Herbie #6-14. Published by Dark Horse, 2008-Dec-03. Available at Amazon.com and TFAW

Introduction by Jim Valentino

Herbie Archives Volume 3. Reprints of Herbie #15-23. Published by Dark Horse, 2009-Apr-15. Available at Amazon.com and TFAW

Introduction by Dan Nadel

Jeff Overturf uploaded Usenet scans of the entire Herbie series in 2010, along with his own unique take on Herbie: fw#73 - fw#94 - fw#110 - fw#114 - fw#116 - #1 - #2 - #3 - #4 - #5 - #6 - #7 - #8 - #9 - #10 - #11 - #12 - #13 - #14 - #15 - #16 - #17 - #18 - #19 - #20 - #21 - #22 - #23

"Something...?" A Study of Comics Pioneer Richard E. Hughes, by Michael Vance. AlterEgo #112, August, 2012, pp. 24-54. Utilizing the collection of Joseph Eacobacci.

Further analyses by Michael Vance, based on recently found artifacts, including three unpublished Herbie scripts, for which splash pages are offered by Larry Guidry and Shane Foley. Download the PDF for $3.95.