[Koha] Br Raphael

I am Br Raphael of Prince of Peace Abbey. I have been learning Koha for the past year. I have become the librarian of the Abbey along with a few other jobs. The library has about 40K volumes. I also have four other libraries to merge into the main. I have to thank all who have helped in the past. Now my biggest problem is that the librarian before me, God rest his soul, did not attach Items to those 40K books. Beside doing it the hard way. That is one by one. I hope there is a faster way to do that. I am not a programmer so I need step by step instructions. I think I am doing good with me being 74 years of age. I might be the oldest librarian using Koha.