Mastering Bitcoin[1] is perfect fit for you. Jameson Lopp also have list about technical Bitcoin resources[2]
Thanks for the pointers, ABCbits! I was aware of the book but it had totally slipped my mind, so cheers for the reminder. And Lopp's list is indeed gold – much appreciated! The ChatBTC (technical chat bot) on Lopp's list immediately caught my eye – just checked it out and it looks super cool!
ChatBTC is convenient and provide source of the information (which is nice since many chatbot never state the source), but don't rely too much especially for niche topic. And if you already tried it few times, you probably already know the website will ask you for Bitcoin payment to keep using the chatbot.