They allow heaters to stand next to collection material. Heat speeds up the natural chemical reactions that occur as materials age. So extra exposure to heat will make paper and books old, fragile and useless before their time. Make sure books are housed a reasonable distance from heat sources and outlets. They leave books on the floor and in areas where leaks regularly occur Water warps paper, dissolves ink, encourages mould growth and causes glossy pages to stick together.
Store books up off the floor and away from possible water leaks.
They eat as close to collection material as possible Food and drink can create serious problems in storage and work areas. Crumbs will provide food to attract pests and drinks easily spill and stain. Don't use your books as a food tray. The naturally occuring oils in your skin, as well as moisturisers and the invisible remnants of lunch are left behind on the paper. In time these things will darken and stain the paper.