| Answer | Crossword Clue |
|---|---|
| TREATISE | A book on some particular subject. |
| monograph | a formal piece of writing, or a short book on a particular subject |
| compendium | a detailed collection of information on a particular subject, especially in a short book |
| handbook | A book giving information such as facts on a particular subject or instructions for operating a machine |
| handbooks | A book giving information such as facts on a particular subject or instructions for operating a machine |
| casebooks | A book containing a selection of source materials on a particular subject, esp. one used as a reference work or in teaching |
