...please be aware that in some places, unregistered mail is sometimes lost. Or worse!*
I hope this post is not a case of closing the door after the horse has bolted, but perhaps we should consider recorded delivery when sending out our books.
I am well aware of the need to keep costs within means, but perhaps it's something which needs to be addressed. Perhaps should have been addressed! Certainly, an important consideration for any future projects.
So, if you have not yet completed and mailed your books, please see if you can record their sending/delivery from your end. And do email the recipients once the books are sent.
And, as a courtesy, let senders know as soon as books arrive.
On that note...I'd better get cracking, hadn't I? I think I'm looking at November for my completion(s).
* I've been on the losing end too often so now send all important mail (hey! all mail should be considered important!) as recorded delivery, which means it must be signed for by the addressee.