Designed for grades 3-5, this student text contains 30 narratives (10 for each grade level) written to help readers develop a positive self image and to promote career goals based upon personal interests and abilities, not on sex or ethnicity. All episodes focus on the travels of six pen pals from New York, Chicago and California who begin their adventures the summer after completing seventh grade. During the first summer (level 1), the students tour California. The next summer (level 2), they investigate colonial and revolutionary America by traveling throughout the eastern coast in a specially equipped van, Probe I. The final summer, (level 3) they use Probe II to scientifically explore a north central state, several mountain states, and parts of the Pacific Northwest. The six characters have unisex names to emphasize their personal attributes rather than sex roles. Throughout their travels the youngsters encounter people working in a wide variety of careers. Composite illustrations accompany the text. This reader is part of an instructional program called "Probing Our Wonderful Environmental Resources" (P.O.W.E.R.) developed through a special project called the Production of Women's Educational Resources.