Two space is more common and that's what I use. But I don't think, it makes much difference if you use one or two spaces.
"We come to love not by finding a perfect person, but by learning to see an imperfect person perfectly": http://amzn.to/dMBLWW
As someone else noted, the two-space rule is left over from the days of the typewriter, and you should only use it if you are writing on a typewriter. Any modern word processor (meaning any program running on your computer) adjusts spacing automatically for optimal appearance after a period, and you screw that up if you space twice. This will make your self-published eBooks look clunky and make more work for folks at the publishing house if you go the traditional publishing route. In either situation, you will look less professional than you want to look.
Very interesting - I didn't know word processors/computers changed it to look right!
I think who ever mentioned the 2 spaces was a hold over from typewriter days was right. I was taught on an electric typewriter (we were technically forward back then!) - we were still taught the 2 space rule. My last main job they used to get after me because I used the 2 space rule. That was the only rule I'd ever heard about - they're answer "who ever told you to use two spaces?" - they were awful company to work for too. So I kind of ignored them and kept with the 2 spaces. I haven't any clue what I'm doing now. I think I'm just doing 1 space while I write this - so I guess I changed over at some point. =D To be honest, I don't really care - if it looks good to me I'll do it - and if someone complains - well, it's my blog. (Can you tell I've had a migraine for 4 days now?)
Thanks for an interesting conversation! Tina 'the book lady'
I used two spaces ... but I also used a manual typewriter. Over the last decade or so I've worked hard to get out of the habit, so I don't backslide often.