Just going by description and the "red book" it seems like its Auto Mechanics Fundamentals:
>>> "It is the aim of Auto Mechanics Fundamentals to provide a thorough understanding of the design, construction and operation of automotive units. Each unit is approached by starting with basic theory, then parts are added until the unit is complete. By following this procedure, the function of each unit is explained, and its relationship to the complete car is made clear. Hundreds of illustrations were drawn especially for this text. Important areas are featured in these drawings, and many are exaggerated to place emphasis on parts being discussed. Unfamiliar words are defined immediately following the words. In addition, the Dictionary of Terms in the back of the book defines more than 1,100 terms..."
>>> "It is the aim of Auto Mechanics Fundamentals to provide a thorough understanding of the design, construction and operation of automotive units. Each unit is approached by starting with basic theory, then parts are added until the unit is complete. By following this procedure, the function of each unit is explained, and its relationship to the complete car is made clear. Hundreds of illustrations were drawn especially for this text. Important areas are featured in these drawings, and many are exaggerated to place emphasis on parts being discussed. Unfamiliar words are defined immediately following the words. In addition, the Dictionary of Terms in the back of the book defines more than 1,100 terms..."
https://www.amazon.com/Mechanics-Fundamentals-Construction-O...
(This one is blue but there is another version in red)