The officialU.S. Army Survival Manual 2176 . Over 230 pages of pure survival knowledge. This is a must have for anyone to keep on their phone or tablet, you never know when you many need this.
Just look at what all is covered in this manual...
CHAPTER 1 INTRODUCTION
SURVIVAL ACTIONS
PATTERN FOR SURVIVAL
CHAPTER 2 PSYCHOLOGY OF SURVIVAL
A LOOK AT STRESS
NATURAL REACTIONS
PREPARING YOURSELF
CHAPTER 3 SURVIVAL PLANNING AND SURVIVAL KITS
IMPORTANCE OF PLANNING
SURVIVAL KITS
CHAPTER 4 BASIC SURVIVAL MEDICINE
REQUIREMENTS FOR MAINTENANCE OF HEALTH
MEDICAL EMERGENCIES
LIFESAVING STEPS
BONE AND JOINT INJURY
BITES AND STINGS
WOUNDS
ENVIRONMENTAL INJURIES
HERBAL MEDICINES
CHAPTER 5 SHELTERS
SHELTER SITE SELECTION
TYPES OF SHELTERS
CHAPTER 6 water PROCUREMENT
WATER SOURCES
STILL CONSTRUCTION
WATER PURIFICATION
WATER FILTRATION DEVICES
CHAPTER 7 FIRECRAFT
BASIC FIRE PRINCIPLES
SITE SELECTION AND PREPARATION
FIRE MATERIAL SELECTION
HOW TO BUILD A FIRE
HOW TO LIGHT A FIRE
CHAPTER 8 FOOD PROCUREMENT
ANIMALS FOR FOOD
TRAPS AND SNARES
KILLING DEVICES
FISHING DEVICES
PREPARATION OF FISH AND GAME FOR COOKING AND STORAGE
CHAPTER 9 SURVIVAL USE OF PLANTS
EDIBILITY OF PLANTS
PLANTS FOR MEDICINE
CHAPTER 10 POISONOUS PLANTS
HOW PLANTS POISON
ALL ABOUT PLANTS
RULES FOR AVOIDING POISONOUS PLANTS
CONTACT DERMATITIS
INGESTION POISONING

CHAPTER 11
INSECTS AND ARACHNIDS
LEECHES
BATS
POISONOUS SNAKES
DANGEROUS LIZARDS
DANGERS IN RIVERS
DANGERS IN BAYS AND ESTUARIES
SALTWATER DANGERS
CHAPTER 12 FIELDEXPEDIENT WEAPONS, tools AND EQUIPMENT
CLUBS
EDGED WEAPONS
OTHER EXPEDIENT WEAPONS
LASHING AND CORDAGE
RUCKSACK CONSTRUCTION
CLOTHING AND INSULATION
COOKING AND EATING UTENSILS
CHAPTER 13 DESERT SURVIVAL
TERRAIN
ENVIRONMENTAL FACTORS
NEED FOR WATER
HEAT CASUALTIES
PRECAUTIONS
DESERT HAZARDS
CHAPTER 14 TROPICAL SURVIVAL
TROPICAL WEATHER
JUNGLE TYPES
TRAVEL THROUGH JUNGLE AREAS
IMMEDIATE CONSIDERATIONS
WATER PROCUREMENT
FOOD
POISONOUS PLANTS
CHAPTER 15 COLD WEATHER SURVIVAL
COLD REGIONS AND locations
WINDCHILL
BASIC PRINCIPLES OF COLD WEATHER SURVIVAL
HYGIENE
MEDICAL ASPECTS
COLD INJURIES
SHELTERS
FIRE
WATER
FOOD
TRAVEL
WEATHER SIGNS
CHAPTER 16 SEA SURVIVAL
THE OPEN SEA
SEASHORES
CHAPTER 17 EXPEDIENT WATER CROSSINGS
RIVERS AND streams
RAPIDS
RAFTS
FLOTATION DEVICES
OTHER WATER OBSTACLES