Beyond Dreaming - An In-Depth... https://www.amazon.com/dp/B095JQ4YTP?ref=ppx_pop_mob_ap_share
Gene Hart is a moderator on this sub and has a book:
Beyond Dreaming - An In-Depth... https://www.amazon.com/dp/B095JQ4YTP?ref=ppx_pop_mob_ap_share
My book isn't completely and solely about Astral projecting through lucid dreaming, nor is it about talking about dreaming in the conventional sense. However at the same time, the book is entirely about this. I do also give specific techniques on how to Astral project from a lucid dream; but techniques are secondary - understanding and practice is primary, and that's what is valued most in the book.
The book challenges the reader's understanding of what dreams actually are and grounds this understanding into something that we're able to work with in physical life in order to make deeper shifts in our sleeping consciousness.
Realise that you're dreaming in physical life, and you'll realise that you're dreaming in your sleep too ~ as above, so below~
If you're interested, here it is: https://www.amazon.com/Beyond-Dreaming-Depth-Experiences-Consciousness/dp/B095JQ4YTP/ref=sr_1_1?dchild=1&keywords=how+to+astral+project&qid=1628983853&sr=8-1
(or search for "Beyond Dreaming by Gene Hart" in your country's Amazon)
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Of course, this is a biased suggestion, and I'd suggest other books but I don't know any that deeply and explicitly touch on how lucid dreaming and Astral projection are synonymous phenomena - which when understood practically, we can utilise to easily Astral project from dreams.