I have 9 books that have gone to my first kindle that I do not have how can I get them moved to my 2nd kindle
Go to 'Manage Content & Devices' of your Amazon account. Select the desired titles in 'Content' and use 'Actions' (...) to deliver them to the preferred device (2nd Kindle). (Content isn't moved between devices.)
Note: Your post is unrelated to the topic of this thread and forum (Echo/Alexa > Connecting a 2nd gen Dot) so the Moderators will move your post to the appropriate forum.
Removed incorrect information relative to old device. See CBR's reply, below