Meagen Fay who plays Kaley Cuoco's mother played Bernadette Rostenkowski's mother on Kaley's show The Big Bang Theory.
The photograph on the poster for Kaley Cuoco's book signing is a first season publicity photo from Kaley's show The Big Bang Theory.
At the hardware store book signing, the phone number 323-656-7028 appears on a sign behind Dennis Farina. This is the actual phone number to the Tashman Hardware store in West Hollywood.
At Richard Brodwell's book signing, the title of his book is misspelled on the poster as "The Pineapplle Game."
Richard Brodwell's address is 4441. Hannah's lucky number is 4, but she's deathly afraid of 13... Which is what you get if you add 4+4+4+1.