More then any other material of construction, concrete depends for its performance on the skill and understanding of the man on the job. Since this applies particularly to reinforced concrete construction, it will be a matter of great interest to all contractors a now handbook entitled "CRSI Recommended Practice for Placeing Reinforcing Bars." The book was prepared under the direction of the Engineering Proactive Committee of the Concrete Reinforcing Steel Institute by R. C. Reese. The book answers hundreds of questions. Some examples are: how many standard sizes of reinforcing bars are now being rolled; what are stirrups and why are they used; why are column spirals used and related issues.