The Big Idea: Scientists Who Changed the World

96 pages first pub 1999 (editions)

nonfiction informative reflective medium-paced

96 pages first pub 1998 (editions)

nonfiction biography history challenging informative medium-paced

96 pages first pub 1998 (editions)

nonfiction informative reflective medium-paced

96 pages first pub 1997 (editions)

nonfiction biography philosophy science challenging informative medium-paced

107 pages first pub 1997 (editions)

nonfiction science challenging informative medium-paced