Request for a complete guide to setup and use GNUCash for online seller

[Souradeep Panda]

Dear Sir / Madam,

I am a newbie online seller, selling my old stuff for some money. I
currently use MS-Excel for accounting and stock keeping but it's getting
very complicated and logical errors are popping up now and then.

I am willing to make a one-time donation if I can make GNU Cash work
according to my needs by watching your video guide and/or by reading your
ebook / pdf.

Thanks & regards.
-- 
Souradeep Panda
(+91) 9475 540 220