I wanted to comment on this before but didn't but now I will I know Park Tools have a great reputation but in my opiniun their book does'nt reflect it!! I found what i consider a better Bike maintenace book it's bigger ,it's got better ilustrations ! it's the Bicycle Maintenance & Repair,,,for road and Mountian bikes,,, By Todd Downs... check it out I bought this one first then I bought the Park Book I don't even open it and Parks got color ilustrations but thats about it,,,,,,,,,,,,,,,