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     |   Invoice derived from registration number:       4.20001          |
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     |                                                                    |
     |   To: Computer Knowledge                                           |
     |       P.O. Box 91176                                               |
     |       Los Angeles, CA 90009               Date: ________________   |
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     |                                                                    |
     |                                                                    |
     | From:                                                              |
     |       ________________________________  (please print clearly)     |
     |                                                                    |
     |       ________________________________                             |
     |                                             Note:                  |
     |       ________________________________      Purchase Orders or     |
     |                                             credit card orders     |
     |       ________________________________      not accepted.          |
     |                                                                    |
     |                       Make checks payable to: Computer Knowledge   |
     |-----------------------------------------------------+--------------|
     | Product description                                 |    Amount    |
     |-----------------------------------------------------+--------------|
     |                                                     |              |
     | ___ Registration for TUTOR.COM program and          |              |
     |     initial distribution files................$12   |   $________  |
     |                                                     |              |
     | Entitles user to latest version of TUTOR.COM,       |              |
     | and a registration number that will result in       |              |
     | payments for any other users who register using     |              |
     | that number as a reference.                         |              |
     |                                                     |              |
     | ___ Tutorial building tools and a registered        |              |
     |     copy of TUTOR.COM.........................$25   |   $________  |
     |                                                     |              |
     | Entitles user to latest version of TUTOR.COM        |              |
     | AS ABOVE plus tutorial building tools that allow    |              |
     | the user to write tutorials for use with the        |              |
     | program. The tools come with a manual.              |              |
     |                                                     |              |
     | Multiple copy or site license users please contact  |              |
     | Computer Knowledge for more information.            |              |
     |                                                     |              |
     | California residents please add appropriate tax.....|...$________  |
     |   6% for all counties except as listed below        |              |
     |   6.5% in Alameda, Contra Costa, San Francisco,     |              |
     |        Santa Cruz, Los Angeles, & San Mateo         |              |
     |   7% in Santa Clara                                 |              |
     |                                                     |              |
     | Overseas orders please add $7 for shipping..........|...$________  |
     |                                                     |______________|
     |                                                     |              |
     |                                    Total enclosed...|...$________  |
     |                                                     |              |
     | Out of US please provide funds in US dollars, drawn |              |
     | on a US bank or we cannot process the order. Canada |              |
     | place "US Dollars" on your check.                   |              |
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                                      Thank you