There are things you need to be aware of and take into consideration when faced with this possibility. You'll need to make sure your nutritional needs are met, and this book can help you adjust your diet as needed.
Click on the book cover to be taken to the download site. Click the title below the cover to read the synopsis over at Amazon.com.
Need to know what knot to tie for a particular purpose, and how to tie it?
And a little self defense thrown in.
The Complete Book Of Wrist Locks
I'm not sure about this last book. It is kinda amateurish, but you be the judge.