Heller Sans JNL is based on the main letterforms of an experimental alphabet designed by Steven Heller; noted author of over 170 books on design and visual culture.  Some modifications were made in turning his design into a digital font. 

In his own words, here is the background to this typeface:

“I recently recovered this from the junk heap. It is a yellowing photostat of my first and only typeface design (1969-70). Total folly! At the time I was smitten by Art Moderne lettering. I called it “Klaus Boobala Bold” because I liked the K and B.

I’ve lost the letters S through Z, which were made. The letters were drawn with compass, Techno pen (that frequently clogged). as well as a triangle and T-square. The inline and outline made no real logical sense.

I based the design, in part, on Kabel, Avant Garde and it was a product of whatever I could accomplish with those tools.  The caps-only alphabet was photographed and produced as a film negative that was cut in foot-long strips and spliced to fit on a Typositor reel. Sadly, the negatives made for the font were too brittle and the splice snapped apart in the Typositor.

I worked on it for well over a month and used the face only once. I realized with this attempt, like so many other times I attempted different challenges, that type design — indeed mechanical drawing — was not my strong suit.”

Heller Sans JNL is available in both regular and oblique versions.