Unless you are using the autographs for separate photo albums or scrapbooks, I'd recommend having only one book. Some of those characters take FOREVER to sign. My daughter (now 8) has loved autographs since she was 4. My son (now 6) has always enjoyed the characters, but never gave a hoot about the autographs so having only one book works for us. We have done the World Showcase masks each of our trips and the kids really enjoy them. I'd put off the Passports until your kids are old enough to read what the cast members write, etc. Again, the Passports take a LOT longer than the masks. (Can you tell I'm a bit impatient?)