If you're likely to shop for tools and supplies at a Home Depot, then I recommend you have a look at their own series of home improvement books. (Note that there is considerable redundancy between the various volumes they offer.) These books provide detailed instructions for a wide variety of basic repairs, as do several of the previously mentioned books, but I find the HD books especially helpful because every product and tool mentioned in the books is readily available in the store. With other books, I sometimes find myself looking for an item that is hard to find (and therefore more expensive or aggravating to use, or even no longer code-compliant) or I only know the item by a name different from the one used by local suppliers. The HD books read more like a cookbook where you know that all the ingredients are waiting for you in one place, or a catalog with step-by-step illustrated instructions. Of course, I rarely need all the tools they recommend I buy for a given project-- don't go overboard on tools if you're just getting started. You can also consult a copy of these books in the store as you face an array of choices. (Of course, you can usually get excellent advice and personal instructions at your small local hardware store, if HD hasn't put them out of business yet. I do have some reservations about these "big-box" stores.)
On the other end of the spectrum, if you want more technical advice and are working on an antique home, I strongly recommend you go to: http://www2.cr.nps.gov/tps/index.htm (and the related site: http://w3.gsa.gov/web/p/hptp.nsf) and explore the many excellent free on-line resources there. While this is an essential resource for professional preservationists, there are many more basic materials there as well. Sometimes the approach encouraged by today's hardware stores and DIY books-- to rip out the old and install all new-- is the worst thing you can do to your home and its future value. The standard DIY guides show you *how* to do projects without considering whether or not you *should*. I'm currently undoing some skilfully-done "remuddeling" projects inflicted on my own lovely Victorian home by previous owners...
More input from WikiAnswers Contributors:
I recommend almost any book put out by Taunton Press (aka Fine Home Building) and to repeat an answer above go to the local library
There are many good books out there. I also have a membership to TheProperHome.com that allows me to ask experts the questions that books do not cover. With the combination of books, videos and TheProperHome, I have always had great success with my home improvement projects.
Neila222