The charity book sale

An original notice containing five intentional errors.

The book sale in the village hall raises money for the local hospice. The donated books was sorted into fiction, non-fiction and children's titles. Buyers should pays at the table by the door. Every paperback costs fifty pence, and each hardback costs one pound unless it's price is written inside the cover. If you are unsure wheather a title is for sale, please ask a volenteer.

Proofread the notice. Identify the five errors and write the correct forms. You do not need to rewrite the whole passage.