These two books both look good. I’m not particularly handy with tools so both are way beyond me.
“How to Build Your Own Greenhouse” by Roger Marshall (Storey, $24.95) offers lots of conventional plans that should work anywhere. Good schematics and clear directions.
“The Earth-Sheltered Solar Greenhouse Book” by Mike Oehler (Mole Publishing, $24.95) looks like a fun read. Mike has lived on a 46-acre homestead in northern Idaho since 1971 and he’s got lots of notions about gardening and how to use the earth to your advantage when considering a greenhouse.