Time and Again, by Jack Finney****

I thought I had read this book before, because some of the character names looked familiar. It has been many years since the period when I read dozens, maybe hundreds, of science fiction books and stories. I 've forgot many of the authors' names, and remember others, among them Jack Finney. Anyway, Time and Again may be science fiction, or it may qualify as fantasy, since there aren't any flying saucers or little green men. It's about time travel, made so easy that it almost seems that you, I, or anyone else could do it. I enjoyed it enormously.