https://www.amazon.com/Apple-Watch-User-Guide-Complete/dp/1723502758/ref=mp_s_a_1_30?ie=UTF8&qid=1537463242&sr=8-30&pi=AC_SX236_SY340_QL65&keywords=watch+book&dpPl=1&dpID=51F8TIsyQhL&ref=plSrch
Should do the trick! Cheap and a great read!