OK, my ex-wife is a science fiction writer published by one of the major science fiction publishers, she has three books out with a coauthor that can be found in any major bookstore. I moderate her publisher's discussion forums and have been part of MANY discussions with her publisher, other publishers, and authors.
What is your wife's goal? Does she want to point to a book on the shelf and say "I wrote that" or does she want to be a professional writer? If she just wants to point to the book, go with Tate, spend a bunch of money, and count it as the price of her happiness. If she wants to be a professional writer, going with Tate will HURT her chances of getting on with a real publishing house, and she is unlikely to have her books show up in any major bookstores. Once she 'publishes' through Tate, no major publisher is going to want to pay for the book since it's already been published, most money is made with first printing rights, and if she tries to get later books published, and they see that her first effort was self-published, that will be considered a negative.
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Anyone on here actually had a book published with Tate Publishing? THanks for the replies so far. Asking for assistance please.