The biggest trick to wallpaper installation is patience. Rushing through this project will leave you with a mess on your walls that will take longer to fix than it would have to do it well in the first place. But with a little patience, and a few tips, you can have beautiful walls and the pride of a job well done.
Tools You Need for Wallpaper Installation
Scissors, Wet sponge, Bucket of water, Long tray, Utility knife, Broad putty knife, Seam roller,Wallpaper smoother, Tape measure, Push pins, Wallpaper adhesive, Optional: Lining Paper

8 Tips for Wallpaper Installation
Round Your Measurements Up! It is always better to a little extra paper to work with than to cut the paper short.
Know Your Paper Type. Are you using
Know Your Adhesive Type. The different types of paper need different kinds of adhesive. If you are doing a border, there is a special glue for that as well.
Use Lining Paper. Yes, this is a real thing, and it has more benefits than just giving you some experience putting paper up. Lining will help the paste dry faster, and it will prevent the wallpaper from creasing. It’s a little extra work, but worth it!
Be Careful With the Glue. Use a sponge to wipe away excess adhesive. Take the time to clean your sponge often so you avoid accidentally brushing the old glue onto a new surface.

Keep Your Knife Sharp. You will use your utility knife to trim the paper. You need this tool to be sharp and ready to get a clean cut.
Leveling is Important! Just as you took the time to properly measure the paper, take the time to check your placement is level.
Don’t Freak Out if You See Bubbles! This happens! Air will get trapped under the paper. Hopefully, it will go away on its own as the paper settles. If it doesn’t, puncture the paper with a tiny pin and then use your wallpaper smoother. Trust that this is part of the process.