As it comes to Robert Heinlein, there's all sorts of places to start. He started off writing juvenile novels and my favorite of those is The Star Beast, a real goodie. The most famous of his adult novels is, without doubt, Stranger in a Strange Land, controversial 50 years ago and might still be considered so today. The most difficult (for me) of his work was Starship Troopers for its militaristic philosophy, but that doesn't mean it isn't a good piece of writing; it is. While I'm at it, I should also mention another Heinlein which, like Stranger and Starship, won Hugo Awards: The Moon is a Harsh Mistress, another one I enjoy rereading.
If you want to see Heinlein's attitude toward religion, it's all over the place. The novella, "If this goes on..." from the collection Revolt in 2100 is an early expression of his anti-theistic bent. Stranger shows this as well, but the best and most humorous expression may come with one of his last novels: Job: A Comedy of Justice.
And then, of course, there is Lazarus Long, the world's oldest man. Lazarus was born Woodrow Wilson Smith in the year 1912 and when last we looked (in 4272!!!) he was still cranking! His story starts with Methuselah's Children, then continues with one of my favorites: Time Enough For Love. He also appears in The Number of the Beast and RAH's two last pieces: The Cat Who Walks Through Walls and To Sail Beyond the Sunset.
Yeah, I know I just threw a lot at you, but then there's a lot to Robert Heinlein and what he put down on paper. Any questions or if you'd like to discuss his work with me, please give a shout.
Hello Phillip, and welcome to this friendly meeting place with its atheist freethinkers who recognise that fictional gods and pervasive religions continue to deceive and control vulnerable superstitious people including defenceless children; and how tragic and inexcusable it is that women and minorities have been oppressed these last two thousand years and longer.