Looking around the net I found some interesting articles.
How to Tile Your Wall
Tiling is a skilled job – but if you take care, there’s no reason why you shouldn’t get great results. To start with, make sure the surface you’re tiling is clean, dry and flat. Also, strip your wallpaper back to the plaster, removing any crumbling plaster and filling any holes. Remember to let your new plaster dry out completely (it takes at least two months) and prime any porous surfaces with a PVA-based adhesive. Continue reading: http://www.diy.com/help-advice/how-to-tile-your-wall/CC_npci_100089.art
Video: How To – Tile Over Tiles
Always make sure that the tiles you have selected are suitable for the area you wish to tile. Consideration should be given to how a particular tile will wear; all tiles have a wear rating, ask before making a choice. Check that your tiles are suitable for wet or outdoor areas, these areas require slip resistant tiles to reduce the likely hood of some one slipping over. Continue reading: http://www.ultimatetiles.com.au/diy-tiling.html
Question: Can you tile over tiles or should you remove all of the old ones first? Read some helpful answers here: http://www.mybuilder.com/questions/v/669/can-you-tile-over-tiles-or-should-you-remove-all-of-the-old-ones-first
How to Hire a Tiling Contractor
Even a small error in floor, wall, or bath tile can be an eyesore. One minutely mispositioned tile, for example, can throw off the pattern and grout line, making the goof glaring. Worse, fixing a botched tiling job is expensive, disruptive and messy, especially if water has seeped through the grout and ruined framing, ceilings and finished walls. Continue reading: http://www.thisoldhouse.com/toh/article/0,,332763,00.html
Home repairs and improvement should be done acordingly in order to maximize budget intended for this purpose. In relation to this, it advisable to always get the right tips and advice. These tips will surely help you.