Re: Recovering Deleted Books - Kindle
Not sure if you have the same Kindle version as me, but on mine you click on
Home > menu > view archived items
And then click (the select button that's in the middle of the direction keys; up/down/left/right) on any of the deleted items there - and it should automatically restore it
If that doesn't work due to you having a different version have a look in your manual/guide because I'm pretty sure it was mentioned in there