- Author: Walker Author Record # 90649
- Language: English
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Cover Art
- The Science-Fictional Sherlock Holmes (1960)
- Galaxy #63 [Italian] (1963)
- Trouble on Tycho (1943)
- Tandy's Story (1961)
- Tandy's Story [2] (1961)
- Aloys (1961)
- Aloys [2] (1961)
- The Air of Castor Oil (1961)
- The Air of Castor Oil [2] (1961)
- Rainbird (1961)
- The Little Man Who Wasn't Quite (1961)
- The Red Flowers of Tulp (1962)
- Decision (1962)
- La storia di Tandy [Italian] (1962)
- The Survey Trip (1962)