The Wrong Girl author previously revealed that the idea started as a book, but decided to create the digital version first, because "the broken-hearted tend to live on their phone, and also do silly things on that phone, so having a break-up coach in their pocket made sense to me."
Break-Up Boss also features illustrations by our Instagram fave Mari Andrew.
Due to popular demand, Foster-Blake decided to finally turn it into a book, making it her seventh release.
Break-Up Boss goes on sale in April.
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This article originally appeared on WHO.