Waterbury, Connecticut: Timex Computer Corporation 1982. , 154 pages. 5 1/2 x 8 inches. Comb bound. Minor wear to the extremities, including at the edges of the comb binding. Very Good. Comb. 
A detailed instruction manual for the Timex Sinclair 1000, an early consumer focused home computer. Manual 330-011006.
"The Timex Sinclair 1000 (TS1000) was the first computer produced by Timex Sinclair, a joint venture between Timex Corporation and Sinclair Research. It was launched in July 1982, with a US sales price of US$99.95, making it the cheapest home computer at the time; it was advertised as "the first computer under $100". The computer was aimed at regular home users. Unlike earlier computers aimed at home users, the TS1000 was not a kit which had to be soldered and assembled. As purchased, the TS1000 was fully assembled and ready to be plugged into the users' home TV (which served as a video monitor)." (wiki)