Useful FAQ that was previously available at another (now-defunct) website. Not 100% complete -- one embedded image is missing -- but very informative / helpful nonetheless.
Author of FAQ is firstname.lastname@example.org -- content was all generated / compiled by him, and he kindly gave me permission to re-post the FAQ. I claim no right or interest, and take credit only for converting the FAQ to PDF and uploading it here. (Thanks are also due, however, to user hugh_g_rection, who sent me the electronic copy of the FAQ that I used to generate the PDF.)