As a very casual Japanese studier (450 day streak on Duolingo), this looks interesting! I like having kanji etymology explained or having them broken down into their constituent parts, even if it's not strictly the most efficient way to memorize.

The kanji in English sentences is intriguing, I'm not sure how effective it would be.

Can you post a complete table of contents so I can see if it makes sense for me to purchase? Do you have a timeline for the next book release? I may be more interested in that.