This morning, there was a query from our German Logosians: https://community.logos.com/forums/t/190184.aspx And the not infrequent mystery of 'what's different'??
But that merited a return to Rick's thread 4 years ago ... well written, and the discussion that followed, especially David Knoll.
My impression, if you have BHt, is what do you DO with it?? MJ had a thread yesterday on these types of resources and their value ... Andersen-Forbes is another.
Anyway, here's the celebration thread for BHt in Logosland, with great illustrations:
https://community.logos.com/forums/t/122202.aspx?PageIndex=1
And here is a PDF that Rechenmacher and Van Der Merve wrote back in 2005, that speaks to the whole area of Transcripta:
https://www.uni-wuerzburg.de/fileadmin/01010030/_temp_/JSS.PDF
To my knowledge, Richter didn't have an explanatory book? There was a volume on Amazon remembering him (in german).
Andersen-Forbes has a volume (a bit pricey):
https://www.logos.com/product/45710/biblical-hebrew-grammar-visualized
But you can read a bunch of their PDFs on their site:
http://www.andersen-forbes.org/