- English language + Idioms -- Problems, exercises, etc
- Physics -- Problems, exercises, etc
- Mathematics -- Problems, exercises, etc
- English language -- Textbooks for foreign speakers -- Problems, exercises, etc
- Post-traumatic stress disorder + Treatment -- Problems, exercises, etc
- English language + Rhetoric -- Problems, exercises, etc
- Nature + Mathematics -- Problems, exercises, etc -- Juvenile literature
- Substance abuse + Patients + Rehabilitation -- Problems, exercises, etc
- Reading comprehension -- Problems, exercises, etc
- Calculus -- Problems, exercises, etc
- United States -- Social life and customs -- Problems, exercises, etc
- Creative writing + Psychological aspects -- Problems, exercises, etc
- Algebra -- Problems, exercises, etc
- Library personnel management -- Problems, exercises, etc
- Creative thinking -- Problems, exercises, etc
- English language -- United States -- Idioms -- Problems, exercises, etc
- Libraries -- Problems, exercises, etc
- Listening -- Problems, exercises, etc
- Arithmetic -- Problems, exercises, etc
- Biochemistry -- Problems, exercises, etc
- English language + Spoken English -- United States -- Problems, exercises, etc
- Geometry -- Problems, exercises, etc
- English language -- Canada -- Pronunciation -- Problems, exercises, etc
- English language + Verb phrase -- Problems, exercises, etc
- Creative writing -- Problems, exercises, etc
- Chemistry, Organic -- Problems, exercises, etc
- Rome -- Civilization -- Problems, exercises, etc
- Awareness -- Problems, exercises, etc
- Oral communication -- Problems, exercises, etc
- English language -- Problems, exercises, etc
- Americanisms -- Problems, exercises, etc
- Interpersonal communication -- Problems, exercises, etc
- English language + Terms and phrases -- Problems, exercises, etc
- Arithmetic -- Problems, exercises, etc -- Juvenile literature
- Trigonometry -- Problems, exercises, etc
- Success in business -- Problems, exercises, etc
- Figures of speech -- Problems, exercises, etc
- Fractions -- Problems, exercises, etc -- Juvenile literature
- Mathematics -- Problems, exercises, etc -- Juvenile literature
- Public speaking -- Problems, exercises, etc
- Precalculus -- Problems, exercises, etc
- Mathematics -- Problems, exercises, etc -- Fiction
- Narration (Rhetoric) -- Problems, exercises, etc
- Well-being -- Problems, exercises, etc
- United States -- History -- Problems, exercises, etc
- English language + Grammar -- Problems, exercises, etc
- Quantum field theory -- Problems, exercises, etc
- Thought and thinking -- Problems, exercises, etc
- English language + Article -- Problems, exercises, etc
- Autobiography + Authorship -- Problems, exercises, etc