As far as i can remember, you need the telephonebook with the numbers of all people you might need to contact within the game in order to play Pizza Tycoon 1. The telephonebook was a part of the manual.

I cannot choose the manual in the download-window.

My question: Do you add the manual later?

It just recently came out on the site so GOG might just not have the manual yet. Although there is apparently a pizza tycoon fan website with the manual. not sure if it's a web based manual or if it's a download. http://www.pizzatycoon.org/

EDIT: it's not the actual manual but I can't find the telephone numbers in it which is apparently part of some city guide. Not sure if it's a guide on the website or an actual thing.

Found them on the site.
http://www.pizzatycoon.org/2011/09/telephone-to-ice-cream-dealers.html

Rome Paris London New York Berlin
4792922 7455342 7783493 2854554 2597546
2822724 3456789 7295254 3224678 8825314
3292746 4443267 7823552 7345626

Baltimore Wien Madrid Chicago Stockholm
7332562 2677435 2764745 5179239 2433143
3563287 7348178 4854325 5783917

Hello again,

because of no reaction of the GoG-Team to my request in this case, here is the link for the german versions of manuals of Pizza Tycoon 1+2 and the Recipe Book:

https://1drv.ms/f/s!Ar5DfMRBSAbpgo83ELg3wPNOm8dx3Q

I put them zipped on a public Onedrive-Folder, so everybody can download it from there.

The Recipe Book is coloured, if you can translate the names of the pizzas you have a coloured version of the pictures (that is really helpful :)).

They were on my hard drive, together with some other manuals of other games.

If somebody supports a better way of sharing the files, you can use it. I've tried to give the files the GoG-Support-Team, but they didn't react in three days, so i don't know if they will react in the future... :/

Cheers and have fun and sorry for my bad english.

Pizza Tycoon came with three printed manuals: the main manual, a recipe book and a city guide. If I remember correctly, the phone numbers which are necessary to play the game can be found in the latter of the three. Without the city guide, the game is unplayable.