Dispirited and distressed by the closures of my 3 questions on resources, but still desiring assistance, may I repost them here on Meta please?
Unfortunately, that would not be welcome.
We chose early on not to allow questions seeking learning resources, because the vast majority simply don't fit the Q&A format of Stack Exchange. A few other Stack Exchange sites do allow certain resource questions, but they must be worded in a particular way, so as not to solicit opinions or be too open-ended.
This question is open-ended, effectively asking for a list of books that meet a criteria. Questions in this format are, practically without exception, closed as too-broad on all SE sites.
Essentially the same as the one above.
This particular question might be acceptable, if it weren't for our policy against resource requests, since it is essentially asking a simple "yes/no" question of "Does a Spanish Reference exist written in French?" This means that any single answer which pointed to such a book could be considered "correct". But in reality, there likely are multiple such books, and (if we had enough French speakers on the site to provide answers), it could quickly turn into a voting war.
These sorts of questions (on SE in general) are generally most appropriate for very rare or hard-to-find things, and where what the answer you're really asking is "Does this thing even exist?" not so much "Where can I find this thing?"
Having said that, what you can do here on Meta, is open a new post proposing your reasons why resource questions such as yours ought to be permitted on the main site. Maybe our community has grown or changed sufficiently since its inception, or maybe you can present some new reasons we have not considered, that now would be a good time to re-visit that policy.
I have wondered at times if our "no resource requests" policy is a bit too hard-lined, so I, for one, would welcome a revisit to the topic.
If I were trying to learn Spanish starting from French, I would look for a little Encyclopedia called the Pequeño Larousse Ilustrado. This isn't exactly a language learning tool, but it's a must have for people who want to look things up in Spanish. As I understand it, it's made by the same people who made the original Larousse in French, and so its structure might be more amenable to someone from French culture.
I'll note in passing that the first French classes I ever took were in Argentina, and the starting language was Spanish, not English.