Super Mario 64 Game Secrets: Unauthorized (Prima, 1996)

Original description by Prima: 

Welcome to the Game of the Century!
King Bowser and his evil army of Koopas can cause even more mischief in their new 3D world. It's a good thing Mario kept pace–he'll have to pursue the bad guys across 15 courses! It will be an even better thing if you've got this guide–it covers them all!
Inside Super Mario 64 Unauthorized Game Secrets you will

• Find the three super-secret Switch Palaces
• Discover the hiding place of Mario's dinosaur pal, Yoshi; flying wings; and one hundred free lives
• Defeat Bowser in a one-on-one fight that'll decide the fate of the princess
• Learn to lava surf using Koopa skills
• Discover lots, lots more!

Condition: Good condition, book shows light wear.