My doubt is this: if I first publish with a serious academic publisher a small book which gives an overall view of my philosophy of science proposal, could I legitimately try to publish afterwards some journal articles detailing the main specific theoretical questions touched upon in the book, or would it be a no-no and considered by the potential journals a form of double submission or attemp to publish non original content?
More specifically, I could distinguish two cases:
a) I try to submit the material to be published as a book, but I am still waiting for a response from the publisher. At the same time, I try to submit to various different journals (by the same publisher or not) some papers which describe in more detail some of the fundamental questions which are touched upon in a more coarse manner in the book.
b) The book has been already published and only aftwerwards I try to submit the detailed papers.
Would the above be legitimate practices? Or should I try only publish articles detailing questions and proposals not already touched in another publication of mine? Consider that the articles would surely add detail to the questions touched upon in the book, but that the basic lines of the arguments would be more or less the same.
I recently achieved a PhD in Philosophy of Science, and I am still not very expert in the topic of academic publications, so this is probably a naive doubt. I tried to ask my PhD supervisor but I'm not quite convinced by his answers.
Thanks in advance