[mzmm]

hi Ti-Ron - i think you should get rid of the tables altogether, especially if they're being used for layout purposes rather than to display tabular data. retailers' publication guidelines usually strongly recommend use of tables in this way as well.

re-structuring the layout so that your content is in paragraph, div, or list tags as appropriate is probably going to be much less frustrating than trying to get the tables to display properly across devices with minimal screen real-estate.

if a lot of the book's content is in tables then it may seem daunting to parse it all, but i honestly think it will save you time and energy in the end, and you'll come out with a much better ebook.