Melvil Dewey originally created ten general categories that most books could be sorted into. The ten areas are listed below with their corresponding numbers. 000 - Generalities, Computer Science, and Information 100 - Philosophy and Psychology 200 - Religion 300 - Social Sciences (anthropology, archeology, sociology) 400 - Language 500 - Natural Sciences (biology, astronomy, etc.) and Mathematics 600 - Technology (applied sciences) 700 - The Arts 800 - Literature and Rhetoric 900 - Geography and History Each of the ten areas contain 99 divisions - more specific categories that fall under the larger areas. Additional decimals indicate the even even smaller sections, which are even more specific. Decimals are added if the topic is even more specific. An example of this specification process is below: 500 Natural Sciences and Mathematics 590 Zoology 595 Arthropods 595.7 Insects 595.78 Lepidoptera 595.789 Butterflies The Dewey Decimal System is great when you're browsing. If you wanted a book on Ethics, for example, you would go to 170. Once you were there you could scan the shelves for a book on an area of Ethics that interested you. This is infinitely more convenient than alphabetical arrangement, in which you might find a book on turtles next to one about turbulence in politics. If your library is large and you would rather not spend a whole day browsing books on the Arts, you could go online for a guide to the various general categories, divisions, and sections. Websites with Dewey Decimal System guides include OCLC, The University of Illinois, IPL.

Summary: Know the ten general areas of content. Understand divisions and sections. Browse using the system. Look online to learn the categories.

To survive, gather food and water and then jump straight to digging. In multiplayer mode, especially with Friendly Fire switched off, players tend to kill other players to get their loot; ammunition and weaponry will be hard to find. You will last a lot longer if you create a good underground bunker. Make sure to block up your entrance to avoid other players from discovering your hide out. Explosives such as Tin Land Mine and Pipe Bomb are good weapons. You can throw pipe bombs at players or zombies, while the tin land mine is a ground-based explosive which can be strategically placed on any flat surface except water. Tin Land Mine: You need 1 Scrap Metal, 1 Gunpowder, and 1 Candy Tin Can. To craft, just place the three materials in the middle of the craft window from top to bottom, scrap metal, Gunpowder and candy tin can, respectively. Pipe Bomb: You only need 1 Plant Fiber, 1 Gunpowder and 1 short Iron Pipe. Short Iron Pipe can be found in air conditioners or can be crafted from Forging Iron. To craft a Pipe Bomb, place the Gunpowder in the very center of the craft window, Plant Fibers above it and the Short Iron Pipe below. If you plan on spending a lot of time underground, you should consider having to openings to your mine. While this can be a little more difficult to defend, it can greatly increase your chance of survival if one entrance is blocked. Use land mines to defend the exit you are least likely to use, and make sure that it is well-disguised.

Summary: Make a digging site ASAP. Make Explosives. Make an entrance and exit.

Even if you are afraid of needles, reminding yourself of how short the pain will last can help. You can say, "It may hurt, but the pain will be over and done within a few seconds. I can deal with that." An anesthetic cream can numb the area where you are getting injected. Make sure it's okay with the doctor before using it, and ask where you can apply it for the injection. Distraction can help you cope with getting pricked and poked. Try listening to music, for instance, or even just playing a game on your phone. Bring a book to read, so you don't have to pay attention to what's going on. Let the medical personnel know what you are going to do, and then go into one of your coping techniques. You can use either the breathing or visualization exercises while you are being pricked, but you should wait until the person is done to try the tension exercise.

Summary: Remind yourself the pain will be over quickly. Try an anesthetic cream. Distract yourself. Use a coping technique.

The potentially intense wind and sunlight will make stronger plants a better candidate for rooftop gardens. Seedlings with these qualities will be more likely to survive the first year. Add shade or windbreakers if you plan to add more fragile plants. Ornamental grasses, honeysuckles, and magnolias all do well in hot, sunny weather. Make sure you regularly water your plants, even those that are drought-resistant. Plants originating from your state or climate will attract native fauna, like birds and butterflies. They will also adapt more easily to your garden than non-native plants. If harsh winds or heat hits, your plants will be much more likely to survive. Decorate the garden with bird- or butterfly feeders to attract more animals. Ask your local nursery which plants are native to your area for your options. Large plants will weigh down your roof and leave less room for other decor. Small, ornamental trees and shrubs do well in rooftop gardens when protected with windbreakers and placed in stable containers. Add 2 to 4 trees or shrubs at most to conserve space. Trim your trees' roots every few years to keep them at a manageable size. Examples of ornamental trees and shrubs include: Dogwood, Japanese Lilac Tree, Crabapple, Star Magnolia, and Jack Dwarf Flowering Pear. Plants with large, supple leaves tend to get shredded by the high winds on rooftop gardens. They are also more likely to suffer winter-burn during the colder seasons. Smaller-leaved plants or pines thrive particularly well on rooftops.
Summary: Look for drought and heat-tolerant plants. Buy plants native to your area. Choose ornamental trees and shrubs. Shy away from large-leaf plants.