Among the pieces of advice authors hear repeatedly, "build an email list" is one of the most common, and also one of the most frequently misunderstood. A list is not a marketing trick, and it does not guarantee sales. It is simply a way of staying in direct contact with people who have already chosen to hear from an author, without relying on a social platform to decide who sees that message.
This guide sets out what an email list actually does for an author, how to build one honestly, and where the UK’s privacy and consent rules apply.
Email versus followers
A social media follower has agreed to see an author’s posts only when a platform’s algorithm decides to show them, which is often a small fraction of an author’s total following on any given day. A subscriber who has opted into an email list, by contrast, has agreed to receive messages directly, and most email services deliver those messages reliably to an inbox, independent of any algorithm.
This does not make email superior in every respect — some readers ignore emails too, and open rates vary — but it does make email a more direct and predictable channel than most social platforms, and one an author does not lose access to if a platform changes its rules.
Ownership and control
An email list, exported and stored properly, belongs to the author and can move with them between email service providers if needed. This is unlike a social media following, which is tied to the platform itself and cannot be transferred elsewhere if the author decides to leave or is locked out of an account.
Reader permission
Every subscriber on a properly built list has actively agreed to receive emails, which is a stronger form of attention than a passive social media follow. This permission is also a responsibility: subscribers can withdraw it at any time, and an author who sends too often, or sends content unrelated to what was promised, will see people unsubscribe.
What to send
Common content for an author newsletter includes news of upcoming releases, behind-the-scenes updates on the writing process, event announcements, and occasional recommendations or reflections connected to the author’s work. For example, a memoirist might send a short update on research for a second book, alongside a note about an upcoming reading; a novelist might share a first look at a new cover.
Frequency
There is no single correct frequency. What matters more than a fixed schedule is consistency and relevance: subscribers who signed up expecting occasional updates about a book series are unlikely to mind a monthly or even less frequent email, but are more likely to unsubscribe from frequent messages that feel like a hard sell every time.
Signup incentives
Some authors offer something in exchange for signing up, such as a short story, a sample chapter or a discount code, to encourage visitors to join the list. This is optional; a clear, simply worded invitation to "get updates about new books" is enough for many authors, particularly those without a piece of bonus content readily available.
Website signup
A website is usually the most reliable place to grow a list, since it gives an author a permanent, owned place for the signup form, unlike a social media post that quickly scrolls out of view. See what should an author website include for where a signup form typically sits.
Launch sequence
Around a book launch, an author with an existing list has a direct way to tell people the book is out, without depending on social algorithms to show that news to their followers at the right moment. This does not guarantee sales, but it does mean the announcement reliably reaches people who have already expressed interest.
Future books
For an author planning more than one book, a list built around the first book becomes an audience ready to hear about the next one, without needing to rebuild interest from nothing each time.
Segmentation
As a list grows, some authors separate subscribers by interest — for example, readers of one series versus another, or fiction readers versus business-book readers — so that each group receives only the updates relevant to them. This is a later-stage refinement, not something a small or new list needs to worry about.
Privacy
A mailing list involves collecting and storing personal data (at minimum, an email address), which brings UK GDPR obligations, including being clear about what the data will be used for and how it is stored. A short, honest privacy policy covering the mailing list should be linked from the signup form or website.
Consent
Under UK rules, consent for marketing emails should generally be clear, specific and freely given, meaning a visible opt-in rather than a pre-ticked box or an assumption based on some other interaction. Adding someone to a mailing list because they bought a book, without their separate agreement to receive marketing emails, does not generally meet this standard; check current guidance from the Information Commissioner’s Office (ICO) if in doubt.
Unsubscribe
Every marketing email should include a clear, working way to unsubscribe, and requests to unsubscribe should be honoured. This is both a legal requirement and simply good practice: a list of people who no longer want to hear from an author is not a useful list.
List quality versus size
A smaller list of subscribers who genuinely want to hear from an author, and who open emails and click through, is more useful than a large list built carelessly, where most subscribers ignore every message. Focusing on attracting genuinely interested readers, rather than chasing subscriber numbers for their own sake, tends to serve an author better over time.
Buying lists — do not
Buying or acquiring an email list from a third party is not an appropriate way to build a mailing list. The people on a purchased list have not consented to hear from that specific author, which is both a data protection problem under UK rules and, practically, likely to produce poor engagement and a high volume of spam complaints.
GDPR and UK context
UK GDPR and the Privacy and Electronic Communications Regulations (PECR) govern how personal data can be collected and used for marketing purposes, including email newsletters, in the UK. These rules apply to authors running even a small personal list, not only to larger organisations, so it is worth checking current guidance from the Information Commissioner’s Office rather than assuming informal rules are enough.
Common mistakes
- Adding people without clear consent. Signing readers up automatically because they bought a book, without a separate opt-in, does not generally meet UK consent requirements.
- Buying an email list. A purchased list has not consented to hear from the author and is likely to produce poor results and data protection problems.
- No unsubscribe option. Every marketing email needs a clear, working way to opt out, both legally and as good practice.
- Emailing too often with too little substance. Frequent, low-value emails tend to drive unsubscribes rather than build a relationship.
- Treating list size as the only measure of success. A smaller, genuinely engaged list is usually more valuable than a larger, disengaged one.
Frequently asked questions
Do I need an email list before my book launches?
It is not required, but building one before launch, even a small one, gives you a direct way to tell interested people the book is out.
How do I get people to join my email list?
A clear, simple signup form on your website is the most common route, sometimes paired with a small incentive such as a sample chapter.
Is it legal to add someone to my list without asking?
Generally no. UK rules expect clear, specific consent for marketing emails, and adding someone automatically after a purchase does not usually meet that standard.
Can I buy an email list to get started faster?
No. Purchased lists have not consented to hear from you, which creates data protection issues and typically produces poor engagement.
How often should I email my list?
There is no single correct frequency. Consistency and relevance to what subscribers signed up for matter more than a fixed schedule.