From your book, click on    to manage book members:

Option 1: Invite with a link

Don't know your colleagues' or friends' email addresses? Send them a link. They will only have to click on it to automatically become a member of the book:

Note: Make sure that the default access rights for new members corresponds to the ones you want to grant them.

TimeTonic generates a link by clicking on the Create button. You have the possibility to request a confirmation, by selecting this choice in the checkbox.  

All you have to do now is copy/paste this link into an email for your recipient. 

Option 2 : Invite with an alias or an email

Share this book by inviting new members by email or with their TimeTonic @ID:  

Then simply enter your recipient's email address (or @ID if it has already been created in TimeTonic), with the possibility of customising the accompanying text that is provided.