1) Your login or password weren't entered correctly - please check to make sure you you are typing them in exactly as you entered them when you created them.
2) NetGalley logins and passwords are case sensitive so keep this in mind when entering your login information since you will not be able to sign in if either are entered incorrectly. *If you are using an iPad/iPhone please make sure the automatic caps feature is not turned on. Please note passwords must be between 8-16 characters, include a number and use no special characters.
3) If this is your first time signing into your account, it could be the case that your account is not yet activated. Please make sure you have received the authentication email and clicked on the link provided - this will allow you to activate your account. If you did not receive the authentication email then please check your spam folder.
If you are still unable to sign in please contact support with your login and the email address you used to register for an account.