There are 200 Gold Bricks to collect throughout the game.
If you are looking for the physical documentation that originally came with the retail box, you can find digital backups or physical copies through these resources:
The archive might contain a "white paper" or text guide detailing game secrets, such as:
Printable versions of the Daily Prophet or The Quibbler seen throughout the game. 3. Game Guides & Cheats
Codes for the Gold Brick Detector (84QNQN) or Invincibility (QQWC6B) are often included in "readme" text files within such archives.