| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Keep Them Close: Password Keeper Book to Store Usernames and Passwords Safely by A-Z | 978-1-7129-2711-3 (1-7129-2711-6) | 2019 |
| Keep Them Close: Password Keeper Book to Store Usernames and Passwords Safely by A-Z Heart Design | 978-1-7129-4146-1 (1-7129-4146-1) | 2019 |