Personally, I love studying "Christian Mythology". I use the term for things that people believe about angels, demons, etc, but for which there is no Biblical proof. Things such as the supposed angel Metatron. There is no mention of him in the Bible, but he is mentioned in the Babylonian Talmud. According to myth, fallen humans could not hear God's voice without being destroyed, so God used the angel Metatron to be his voice. Following the legend, it would have been Metatron speaking from the burning bush, and also him speaking when the dove descended upon Jesus at His baptism.
I do not take this subject to be truth, but find it fascinating. I consider myself to be somewhat of an "Angelologist", and love hearing myths and legends about them. They make for some good (and sometimes inspirational) stories, whether or not they are true (which it is my opinion that most, if not all, of them are not).
In this vein of thought, I lump the Apocrypha in with all the other pseudopigraphal books. They make for a fascinating read. But if you try to build doctrine out of them, it will spawn confusion. In fact, I would warn new Christians to stay away from them, as they read much like scripture, and it would be easy to get confused. Some of the Apocryphal books have content that is directly contrary to the 66 canonical books.
It's actually not unlike reading the Qur'an. If you read the Qur'an, it reads a lot like the Old Testament, and has many of the same historical stories in it. But, again, you have to be able to make a distinction. It would be too easy for someone searching for truth to be led astray by these books.
In the same vein, I have digital copies of the Keys of Solomon that I received from a pagan acquaintance. I made him a deal. I would read them, if he would read the New Testament. I held up my end of the bargain. While interesting to read, I would not let my daughters read them. There are pagan spells of summoning explicitly outlined in them, and I would no sooner let them read that and develop a fascination for magick than I would let them use a Ouija board.