Questions and answers provide information about how cameras, elevators, car engines, tops, yo-yos, and other devices work. Includes charts, diagrams, and an activities section.

"About this title" may belong to another edition of this title.

Store Description

We have been in the bookselling business for over 25 years and have collected for over 50 years. We frequently are called on to do appraisals - institutional and private libraries - and give talks all over the country on collecting for pleasure and profit to civic groups, art leagues, historical societies, etc.

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Seller's business information

M & M Books
GA, U.S.A.

Sale & Shipping Terms

Terms of Sale

Georgia residents please add 7% sales tax. Please include $5.00 (US) for media
mail within USA: $1.00 more for each additional item. Books are sent via US
Postal Service unless other arrangements are requested. For INTERNATIONAL
PURCHASES, PLEASE contact M & M Books at mandmbks@gmail.com at the time of your
order and we will email you the exact cost quoted us by the shipping agency.
NOTE: USPS NO LONGER SHIPS SURFACE MAIL TO OVERSEAS. We will ship GLOBAL
PRIORITY where possible, minimum charge o...

More Information

Shipping Terms

Please include $5.00 (US) for media mail within USA, 5-14 days; $1.00 more for each additional item. Books are sent via US Postal Service unless other arrangements are requested. For INTERNATIONAL PURCHASES, PLEASE contact M & M Books at mandmbks@gmail.com at the time of your order and we will email you the exact cost quoted us by the shipping agency. NOTE: USPS NO LONGER SHIPS SURFACE MAIL TO OVERSEAS. We will ship GLOBAL PRIORITY where possible, minimum charge of $11.00, maximum weight 4 pounds. For packages over 4 pounds, we will contact you via email with exact charges. Georgia residents please add 7% sales tax. If your book order is heavy or oversized, we will contact you to let you know extra shipping is required.

Shipping rates within U.S.A.

Shipping rates within U.S.A.
Order quantity	5 to 14 business days	3 to 6 business days
First item	US$ 5.00	US$ 12.00

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.