- Library personnel management -- Problems, exercises, etc
- Creative thinking -- Problems, exercises, etc
- Creative writing + Psychological aspects -- Problems, exercises, etc
- Algebra -- Problems, exercises, etc
- United States -- Social life and customs -- Problems, exercises, etc
- English language -- United States -- Idioms -- Problems, exercises, etc
- Libraries -- Problems, exercises, etc
- English language + Pronunciation -- Problems, exercises, etc
- English language + Idioms -- Problems, exercises, etc
- Italian language -- Problems, exercises, etc
- Libraries and people with social disabilities -- United States -- Problems, exercises, etc
- Nature + Mathematics -- Problems, exercises, etc -- Juvenile literature
- Substance abuse + Patients + Rehabilitation -- Problems, exercises, etc
- Reading comprehension -- Problems, exercises, etc
- Physics -- Problems, exercises, etc
- Mathematics -- Problems, exercises, etc
- English language -- Textbooks for foreign speakers -- Problems, exercises, etc
- Awareness -- Problems, exercises, etc
- Japanese language -- Problems, exercises, etc
- Biochemistry -- Problems, exercises, etc
- Thought and thinking -- Problems, exercises, etc
- Interpersonal communication -- Problems, exercises, etc
- English language + Terms and phrases -- Problems, exercises, etc
- Spanish language + Grammar -- Problems, exercises, etc
- French language -- Problems, exercises, etc
- Portuguese language -- Problems, exercises, etc
- English language + Verb phrase -- Problems, exercises, etc
- Spanish language -- Problems, exercises, etc
- Japanese language + Grammar -- Problems, exercises, etc
- Well-being -- Problems, exercises, etc
- Travel + Mathematics -- Problems, exercises, etc -- Juvenile literature
- Essay + Authorship -- Problems, exercises, etc
- Success in business -- Problems, exercises, etc
- Fractions -- Problems, exercises, etc -- Juvenile literature
- Mathematics -- Problems, exercises, etc -- Juvenile literature
- Quantum field theory -- Problems, exercises, etc
- Emotions in adolescence -- Problems, exercises, etc -- Juvenile literature
- Graphic methods -- Problems, exercises, etc
- Persian language + Grammar -- Problems, exercises, etc
- Italian language + Grammar -- Problems, exercises, etc
- Communication in organizations -- Problems, exercises, etc
- German language + Grammar -- Problems, exercises, etc
- Logic -- Problems, exercises, etc
- Autobiography + Authorship -- Problems, exercises, etc
- English language + Study and teaching + Foreign speakers -- Problems, exercises, etc
- Self-actualization (Psychology) -- Problems, exercises, etc
- Contract bridge -- Problems, exercises, etc
- English language + Paragraphs -- Problems, exercises, etc
- English language + Spoken English -- Problems, exercises, etc
- English language + Sentences -- Problems, exercises, etc