Science and Mechanics DYI Handyman encyclopedia set. This set contains all 26 complete volumes published in the mid 70's and are in very good condition. The methods and principles contained within theses books are timeless for most all applications. These volumes are from a popular and well respected source "Science and Mechanics." I've listed pictures including part of volume 1 which includes a comprehensive index. The other 25 volumes are similarly complete. Auto mechanics, boating, carpentry, electrical and hundreds of other topics are thoroughly covered. If you have any specific questions email me. This set has always been stored indoors and is a great source of information and reference for beginners and experts alike.