I like the following books: https://www.goodreads.com/book/show/224110.Software_Architecture?from_search=true&qid=mapHvJtQKf&rank=1 https://www.goodreads.com/b

I like the following books: https://www.goodreads.com/book/show/224110.Software_Architecture?from_search=true&qid=mapHvJtQKf&rank=1 https://www.goodreads.com/book/show/224110.Software_Architec... https://www.goodreads.com/book/show/25380761-software-architecture-in-practice-3rd-edition?from_search=true&qid=sBcvkEmab6&rank=7 https://www.goodreads.com/book/show/25380761-software-archit... https://www.goodreads.com/book/show/6329721-software-architecture?from_search=true&qid=sBcvkEmab6&rank=8 https://www.goodreads.com/book/show/6329721-software-archite... https://www.goodreads.com/book/show/1171676.Software_Architecture?from_search=true&qid=sBcvkEmab6&rank=30 https://www.goodreads.com/book/show/1171676.Software_Archite... https://www.goodreads.com/book/show/1347952.Design_and_Use_of_Software_Architectures?from_search=true&qid=sBcvkEmab6&rank=90 https://www.goodreads.com/book/show/1347952.Design_and_Use_o... You can also look at https://ocw.mit.edu/courses/engineering-systems-division/esd-34-system-architecture-january-iap-2007/index.htm https://ocw.mit.edu/courses/engineering-systems-division/esd... , which although it's not specific to software systems has a lot of concepts that are common to all kinds of systems (I took that course in 2013), such as interfaces or modules.