You can edit the title of any Monthbook (5x7", 6x6", or 8x8", softcover or hardcover) in the Chatbooks app. Your book needs at least 1 photo before you can edit the title. Titles can be up to 15 characters.
Where does my title print?
Hardcover Monthbooks: on the cover and on the spine
Softcover Monthbooks: on the cover only
Monthly Minis: titles can't be edited, and nothing prints on the spine
Have a Baby's First Year subscription? Those books are titled automatically. See What are my Baby's First Year books titled?
How do I edit my Monthbook title?
Tap into the Monthbook you want to change the title on
On iOS: Under the cover, tap the pencil icon to edit your title
On Android: Above the cover, tap the pencil icon next to your current Monthbook title
Enter the title you want
Tap Done
Watch how it works
Using the website? See How do I edit the title of my Monthbook on the web?