Friends, I need your advice. I have been asked by my young adult son to build a light weight emergency day hike kit, to serve he and his wife. Something in the 10-12lb. range + water. My son has some first-aid knowledge, but no survival knowledge. His wife is similarly situate. Both of them are relatively fit, very smart, good common sense and have some willingness to gain knowledge. It will be a one-bag backpack kit, with room to be leftover for snacks, water and a bit of extra clothing. I’m thinking of a North Face Recon bag. The larger old style, ~2,200cu. in. , because it’s comfortable, easy to carry, good quality, has 2 outside bottle pockets and I have an extra one in pristine condition. They will be doing day-hikes, 2-6 hours, 3 seasons, no winter or late fall, in New York State, Assume locations in the “ Gunks” around Lake Mohonk area. Some rock scrambling included. The kit is intended to keep them warm, dry, out of the unexpected storm, for 1-2 nights, til help reaches them after they get lost or someone severely twists a knee, type of survival. Assumption is they will be properly dressed. I’m comfortable with my planned kit content list for survival & first aid items. I’m an experienced day-hiker, cross-country skier/ snowshoe hiker and an experienced EMT. However, if you have any special ideas, I’d be glad to read them. My question is what are the best light, compact, easy to use, survival and first-aid books or booklets to provide as emergency guides? Now, I will say that I have already ordered “The Pocket Outdoor Survival Guide” , J. Wayne Fears (2011 Ed.) and the NOLS Wilderness Medicine Pocket Guide ( current Ed.) for the kit. But, the costs were small, so if you can give me better suggestions, I can still order different books. NOTE: I already ruled out the old Lee Nadling Survival Cards, even though I have a spare copy. IMO, they are not comprehensive enough. Same objection to the tiny but waterproof Ron Coredes Guides to survival & first aid. The other waterproof guides seem too big & heavy? Ur views are welcome. Thanx to all, in advance.