The electrical and plumbing books are from a series from Home Depot called "1-2-3": "Plumbing 1-2-3" and "Wiring 1-2-3". I love them but some other posters have shared books that look even better; I plan to check them out. The construction book is "Modern Carpentry" by Willis H. Wagner. I can't find the landscaping book - haven't needed that one as much - but in my stack I noticed Reader's Digest's "Home Improvements Manual" which I've also used quite a bit.