Titles 1 to 3 were printed in this format: #1 in 1948, #2 in 1950, and #3 in 1951. These books are bound in pressed-paper on cardboard with an illustration on the front cover; an illustrated paper dust jacket wraps around the spine. Black and white illustrations decorate the endpapers of #2 and #3. No description of endpapers available for #1. Size: approx. 8" x 5.5".
Titles 1 through 10 were printed in this format from 1954 to 1962. These books are bound in a colorful paper over thin cardboard and covered with cellophane. This format is very fragile and tends to show even the slightest wear. Volumes 1 to 3 feature the same pictures as that shown on the dust jackets of the Dust Jacket editions. Size: approx. 8" x 5.5".
Titles 1 to 13 were printed from 1961 to 1964. These books are bound in a sturdy, durable nylon cloth with a cameo picture of Trixie in the upper left corner of the front cover. A colored pattern decorates the endpapers. Size: approx. 7.75" x 5.75".
Titles 1 to 15 were printed from 1965 to 1967. These books are bound in a sturdy, durable nylon cloth with a color image on the cover. Endpapers show oval color pictures of Trixie and Honey. Size: approx. 8.5" x 5.5".
Titles 1 to 16 printed from 1970 to 1971. These books are bound with more modern colored pictures over thin cardboard. Illustrated by Larry Frederick. They are rather fragile; the binding tends to break easily. These were often sold at Pic-n-Sav. That's where I acquired mine when I was child. Size: approx. 7.75" x 5.25".
Titles 1 to 34 printed from 1977 to 1980 by Golden Press, A Western Publishing Company. These books are bound in a beige paperback material. Each features a color image in an oval on the front cover. Illustrated by Jack Wacker. Size: approx. 7.5" x 5".
Titles 1 to 34 printed from 1977 to 1980 by Golden Press. These books were specially bound for libraries in hardback. They have the same covers as the Beige Paperback Style. Size: approx. 7.5" x 5".
Titles 1 to 39 printed from 1984 to 1986 by Golden Press. These books are bound in a yellow paperback material. Each features a color picture on the front. Illustrated by Jody Lee. Size: approx. 7.5" x 5".
Printed from 1984 to 1986 by Golden Press. Which titles, I don't know, but at least 35 and 36. These were specially bound in hardback for libraries. They have the same covers as the Yellow Paperbacks. Size: approx. 7.5" x 5".
Printed by Dean & Son, Ltd., these small hardbacks look similar to the Beige Paperbacks. Size: approx. 7.5" x 5".
Only volume 1 was printed in this format, 1958. Also known as the Diamond Spine Format. Size: approx. 8" x 5.75".
Trixie Belden Mystery Quiz Books #1 and #2 were printed in regular paperback size. Covers illustrated by Jim Wagner. Size: approx. 7.5" x 5".
