These two books are great for religious study and hymn - singing. When using them, handle the pages gently, especially in 'Church Hymns with Tunes' where pages 8 - 25 are torn. Don't expose them to direct sunlight for long periods to avoid further discoloration. To maintain them, store the books in a dry and cool place. If you notice any loose pages, you can use archival - quality glue to re - attach them carefully. And try not to place heavy objects on top of the books to prevent further damage to the bindings.