Im in riverwood at the river wood trader. I have noticed that there are several spell tomes for sale. what I do not know is if the same spell tomes are reappearing throughout the world or in loot, or if there are more than 1 of these tomes!?
I do not like the idea of reading a tome that i buy or find, and then as soon as I read it it is destroyed forever!

... are there duplicates of most tomes? As in, is it commons to find the same one multiple times for sale or found, or are most tomes that you find for sale or find in every siuation the only ones that exist of that particular tome the game??

If not, then are there any tomes that are the only one of their kind and just one of that particular one??

Thanks.

Spell books aren't unique... you'll find many copies of them.

As far as I know, there are infinite copies of the spell tomes.

Yes, they are the same you will see everywhere. Other vendors, especially the court wizards, sell the same ones. They can also be found as loot. As your skill increases in the schools, you will start to see the more advanced ones as well. But, pretty much they all sell the same ones.

Spell tomes get destroyed after you read them...but there is a never ending supply of them. You can only get the spell once, but I suppose you can sell off the rest.