The code is this:
Please replace ( with [ and ) with ]
(table)(tr)(td)(url=Your Book URL)(img)Your cover image url._SL125_.jpg(/img)(/url) (/td)(td)(url=your second book url)(img)Your 2nd cover image url._SL125_.jpg(/img)(/url) (/td)(/tr)(/table)
(table)(tr)(td)(url=site url)Site name(/url)(/td)(td)(url=Site 2 URL(/url)Site 2 name(/td)(/tr)(/table)
For each book, add (tr)(td)(url=Your Book URL)(img)Your cover image url._SL125_.jpg(/img)(/url) (/td)
Book images: after the address of the image, and before .jpg , substitute what's there (something like __BG0,0,0,0_FMpng_AC_UL160_SR103,160_) for _SL125_
Only close using (/table) when you want to finish a line and start a new one.
You can paste this in a text editor, add your info, then use find and replace to substitute ( for [ and ) for ]
Also, to add Timothy's affiliate code, add /?tag=cirofatl-20 at the end of the book url.