In one sentence, describe what the following article is about: There are a number of general and trade-specific books on reading blueprints, some of which are published by hardware and tool-manufacturing companies and others by government agencies, such as the United States Army. These books are available in hard-copy and e-book formats.  If you're interested primarily in architectural drawings, be sure to specify that in your searches. It's also possible to find blueprint lessons for maritime, civil, and engineering work in addition to many other fields. Videos are available in DVD format and as streaming Internet video.  Many of the video tutorials available on popular viral streaming sites are uploaded by people with practical experience in construction and architecture. However some are presented by amateurs. Be sure to use discretion in self-learning online. Compare what you've learned to more formal academic sources that are also online. Youtube learning is a good place to start in your self-education because they can provide a more basic and grounding understanding, before you move into denser, more complex academic sources. Blueprinting-reading classes are available at local trade schools and community colleges, as well as online.  Universities teach many of the classes available online, but you can also learn from less expensive, specialized companies that only teach blueprint reading. Consider your budget when deciding which is right for you. Although learning online is convenient, you will definitely benefit from going to a community college, trade school, or University class. With an experienced teacher you can ask questions, bring in your work for review and receive consultation. In addition to providing access to classes and instructional videos, the Internet also offers a number of Web sites with information on reading blueprints. Although you won't receive any formal certification, all the resources you need to learn complex blueprint reading is available online.  Read papers published by universities and experienced specialists so you can understand the language of architecture, and to make sure you're getting correct information. Balance this by reading and watching the materials produced by people who've experimented and self-taught. Be aware that they could potentially be presenting incorrect information, but also learn from their mistakes and experiences.
Summary: Read books about blueprints. Watch instructional videos. Take classes in reading blueprints. Learn to read blueprints online.

In one sentence, describe what the following article is about: Open the letter by helping the principal or recipient understand who you are, in case they do not know. State the grade, class, or any further identifying information that is necessary given the size of the school. Do this in 1 sentence.  For example, “With due respect, I am a 12th grade student in Mrs. Williams’ homeroom.” Or “I’m a part-time sophomore living in Fox Hall.” If you are a parent writing on behalf of a student, introduce yourself and your relationship. You might say, “I’m writing on behalf of my daughter, Molly Walsh, a 4th grade student in Mr. Belden’s class.” State the reason for the leave of absence, whether due to personal or medical reasons. Try to remain dispassionate, while still explaining the situation fully. Do this in 1 or 2 sentences, including the length of the proposed leave and dates you will be out.  For example, “Due to some recently discovered kidney stones, I will need surgery this month. My doctor recommends that I miss class for 3 days, from September 9-11, to have this procedure and recover. For example, “Following the recent death of my mother, I respectfully request one month bereavement leave from school, from September 10 to October 10.” If you are a parent writing on behalf of a child, you might say, “Due to a stomach virus, I am respectfully requesting that Molly be allowed to recover at home for the next two days, September 10 and 11.” While you might feel nervous about asking, understand that many people take a leave of absence to restore their mental health. In this sensitive situation, explain how school is disrupting your ability to be well.  For example, you might say, “My declining mental health is disrupting my ability to participate in academic and campus life. I am respectfully requesting 1 month of leave, from September 8 to October 8, to address my depression in therapy at home.” If you are a parent writing on behalf of a student, you might say, “James is currently experiencing a mental health crisis and is not able to access needed services on campus. I am respectfully requesting 60 days of medical leave on his behalf, from October 17 to December 16, to receive treatment at an in-patient facility.” Make your formal leave request in 1 or 2 sentences. You can introduce any corroborating materials at this point, such as a professional opinion from a doctor or therapist.  For example, “Therefore, I ask for you to please consider my leave request as outlined above. I am enclosing a letter from my doctor for your reference.” If you are a parent writing on behalf of your child with a mental illness, you might say, “I kindly ask for you to consider this leave request due to these extenuating circumstances. I am enclosing a note from our family psychiatrist for your reference.” Include a doctor or psychologist's note if it is important to understanding your leave request. If a surgery or illness will require an extended absence, a professional’s explanation may be required. Ask your doctor or mental health professional to write a statement for you to attach.
Summary: Say what grade and class you are in. Explain the reason you needs leave and for how long. Know that mental health is a valid reason to take leave. Ask to be granted leave. Enclose any relevant supporting materials.

In one sentence, describe what the following article is about: Cotton is one of the most common slipper materials. Just like cotton clothing, all cotton slippers will be washing machine safe.  Use warm (not hot) to make sure you don’t shrink the slippers. Use a gentle cycle that won’t bang them out of shape. If you want to toss them in with the regular wash, use a washing machine bag like you’d use for a sweater.  Use a low heat setting to dry. You can also allow them to air dry. If you don’t want to risk machine washing those slippers, then you can hand wash cotton slippers. Use a stopper and fill your sink with warm, soapy water. A small dose of a mild laundry detergent will do. Hand-washing detergents will instruct you how much to use. You want to make sure that the soapy water saturates the material. Use your fingers or a gentle cloth to scrub the inside lining to penetrate the grime. The soap solution won’t hurt the cotton. Give the slippers a good ten minutes to soak after you give them the mild scrub. You’ll see the soapy water changing colors as it leaches out all the funk. After the slippers have soaked, go ahead and let the water out of the sink. Turn the faucet on at about the same warm setting as before and give the slippers a thorough rinse. Squish the slippers as you rinse like you would to get excess soap out of a sponge or luffa. You can refill the sink with clean water to rinse them. Let them soak for ten minutes. You can also rinse them under the running faucet for two or three minutes to get all the soap out. Don’t actually wring the slippers. This can misshape them. Instead, press down on them at several points to remove the excess water. You can also squeeze them in a towel to absorb the excess water. Set the slippers aside to air dry. You can also use a warm setting on a blowdryer to dry them out. A blowdryer will also fluff the soft, cottony insides of the slippers.
Summary:
Consider machine washing them. Fill your sink with warm, soapy water. Drop the slippers in and agitate them. Let them sit. Rinse the slippers. Remove the excess water. Let them dry.